diff --git a/core/lib/Drupal/Core/Language/Language.php b/core/lib/Drupal/Core/Language/Language.php
index 4db85da..68ef44e 100644
--- a/core/lib/Drupal/Core/Language/Language.php
+++ b/core/lib/Drupal/Core/Language/Language.php
@@ -58,8 +58,8 @@ public function __construct(array $options = array()) {
    * @todo Remove this function once $GLOBALS['language'] is gone.
    */
   public function extend($obj) {
-    $vars = get_object_vars($obj);
-    foreach ($vars as $var => $value) {
+    $variables = get_object_vars($obj);
+    foreach ($variables as $var => $value) {
       $this->$var = $value;
     }
   }
diff --git a/core/modules/color/color.module b/core/modules/color/color.module
index 2203133..1308ef6 100644
--- a/core/modules/color/color.module
+++ b/core/modules/color/color.module
@@ -60,7 +60,7 @@ function color_form_system_theme_settings_alter(&$form, &$form_state) {
  *
  * @see theme()
  */
-function _color_html_alter(&$vars) {
+function _color_html_alter(&$variables) {
   global $theme_key;
   $themes = list_themes();
 
@@ -77,12 +77,12 @@ function _color_html_alter(&$vars) {
         if (drupal_basename($old_path) == drupal_basename($color_path)) {
           // Replace the path to the new css file.
           // This keeps the order of the stylesheets intact.
-          $vars['css'][drupal_basename($old_path)]['data'] = $color_path;
+          $variables['css'][drupal_basename($old_path)]['data'] = $color_path;
         }
       }
     }
 
-    $vars['styles'] = drupal_get_css($vars['css']);
+    $variables['styles'] = drupal_get_css($variables['css']);
   }
 }
 
@@ -95,13 +95,13 @@ function _color_html_alter(&$vars) {
  *
  * @see theme()
  */
-function _color_page_alter(&$vars) {
+function _color_page_alter(&$variables) {
   global $theme_key;
 
   // Override logo.
   $logo = config('color.' . $theme_key)->get('logo');
-  if ($logo && $vars['logo'] && preg_match('!' . $theme_key . '/logo.png$!', $vars['logo'])) {
-    $vars['logo'] = file_create_url($logo);
+  if ($logo && $variables['logo'] && preg_match('!' . $theme_key . '/logo.png$!', $variables['logo'])) {
+    $variables['logo'] = file_create_url($logo);
   }
 }
 
diff --git a/core/modules/link/link.module b/core/modules/link/link.module
index 57d744c..9eee27a 100644
--- a/core/modules/link/link.module
+++ b/core/modules/link/link.module
@@ -416,13 +416,13 @@ function link_theme() {
 /**
  * Formats a link as separate title and URL elements.
  */
-function theme_link_formatter_link_separate($vars) {
+function theme_link_formatter_link_separate($variables) {
   $output = '';
   $output .= '<div class="link-item">';
-  if (!empty($vars['title'])) {
-    $output .= '<div class="link-title">' . check_plain($vars['title']) . '</div>';
+  if (!empty($variables['title'])) {
+    $output .= '<div class="link-title">' . check_plain($variables['title']) . '</div>';
   }
-  $output .= '<div class="link-url">' . l($vars['url_title'], $vars['href'], $vars['options']) . '</div>';
+  $output .= '<div class="link-url">' . l($variables['url_title'], $variables['href'], $variables['options']) . '</div>';
   $output .= '</div>';
   return $output;
 }
diff --git a/core/modules/node/node.views.inc b/core/modules/node/node.views.inc
index 7f19d43..03b13e3 100644
--- a/core/modules/node/node.views.inc
+++ b/core/modules/node/node.views.inc
@@ -614,21 +614,21 @@ function node_views_data() {
 /**
  * Implements hook_preprocess_node().
  */
-function node_row_node_view_preprocess_node(&$vars) {
-  $node = $vars['node'];
-  $options = $vars['view']->rowPlugin->options;
+function node_row_node_view_preprocess_node(&$variables) {
+  $node = $variables['node'];
+  $options = $variables['view']->rowPlugin->options;
 
   // Prevent the comment form from showing up if this is not a page display.
-  if ($vars['view_mode'] == 'full' && !$vars['view']->display_handler->hasPath()) {
+  if ($variables['view_mode'] == 'full' && !$variables['view']->display_handler->hasPath()) {
     $node->comment = FALSE;
   }
 
   if (!$options['links']) {
-    unset($vars['content']['links']);
+    unset($variables['content']['links']);
   }
 
   if (!empty($options['comments']) && user_access('access comments') && $node->comment) {
-    $vars['content']['comments'] = comment_node_page_additions($node);
+    $variables['content']['comments'] = comment_node_page_additions($node);
   }
 }
 
diff --git a/core/modules/views/views.module b/core/modules/views/views.module
index 58a7f35..6e87795 100644
--- a/core/modules/views/views.module
+++ b/core/modules/views/views.module
@@ -235,25 +235,25 @@ function views_plugin_list() {
  * we haven't got a chance to load that file before Drupal builds the
  * node portion of the theme registry.
  */
-function views_preprocess_node(&$vars) {
+function views_preprocess_node(&$variables) {
   // The 'view' attribute of the node is added in views_preprocess_node()
-  if (!empty($vars['node']->view) && $vars['node']->view->storage->id()) {
-    $vars['view'] = $vars['node']->view;
-    $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id();
-    if (!empty($vars['node']->view->current_display)) {
-      $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id() . '__' . $vars['node']->view->current_display;
+  if (!empty($variables['node']->view) && $variables['node']->view->storage->id()) {
+    $variables['view'] = $variables['node']->view;
+    $variables['theme_hook_suggestions'][] = 'node__view__' . $variables['node']->view->storage->id();
+    if (!empty($variables['node']->view->current_display)) {
+      $variables['theme_hook_suggestions'][] = 'node__view__' . $variables['node']->view->storage->id() . '__' . $variables['node']->view->current_display;
 
       // If a node is being rendered in a view, and the view does not have a path,
       // prevent drupal from accidentally setting the $page variable:
-      if ($vars['page'] && $vars['view_mode'] == 'full' && !$vars['view']->display_handler->hasPath()) {
-        $vars['page'] = FALSE;
+      if ($variables['page'] && $variables['view_mode'] == 'full' && !$variables['view']->display_handler->hasPath()) {
+        $variables['page'] = FALSE;
       }
     }
   }
 
   // Allow to alter comments and links based on the settings in the row plugin.
-  if (!empty($vars['view']->style_plugin->row_plugin) && get_class($vars['view']->style_plugin->row_plugin) == 'views_plugin_row_node_view') {
-    node_row_node_view_preprocess_node($vars);
+  if (!empty($variables['view']->style_plugin->row_plugin) && get_class($variables['view']->style_plugin->row_plugin) == 'views_plugin_row_node_view') {
+    node_row_node_view_preprocess_node($variables);
   }
 }
 
@@ -261,13 +261,13 @@ function views_preprocess_node(&$vars) {
  * A theme preprocess function to automatically allow view-based node
  * templates if called from a view.
  */
-function views_preprocess_comment(&$vars) {
+function views_preprocess_comment(&$variables) {
   // The 'view' attribute of the node is added in template_preprocess_views_view_row_comment()
-  if (!empty($vars['comment']->view) && $vars['comment']->view->storage->id()) {
-    $vars['view'] = &$vars['comment']->view;
-    $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id();
-    if (!empty($vars['node']->view->current_display)) {
-      $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id() . '__' . $vars['comment']->view->current_display;
+  if (!empty($variables['comment']->view) && $variables['comment']->view->storage->id()) {
+    $variables['view'] = &$variables['comment']->view;
+    $variables['theme_hook_suggestions'][] = 'comment__view__' . $variables['comment']->view->storage->id();
+    if (!empty($variables['node']->view->current_display)) {
+      $variables['theme_hook_suggestions'][] = 'comment__view__' . $variables['comment']->view->storage->id() . '__' . $variables['comment']->view->current_display;
     }
   }
 }
diff --git a/core/modules/views/views.theme.inc b/core/modules/views/views.theme.inc
index 0bae0fc..6ebc3b7 100644
--- a/core/modules/views/views.theme.inc
+++ b/core/modules/views/views.theme.inc
@@ -42,67 +42,67 @@ function _views_theme_functions($hook, ViewExecutable $view, $display = NULL) {
 /**
  * Preprocess the primary theme implementation for a view.
  */
-function template_preprocess_views_view(&$vars) {
+function template_preprocess_views_view(&$variables) {
   global $base_path;
 
-  $view = $vars['view'];
+  $view = $variables['view'];
 
-  $vars['rows'] = (!empty($view->result) || $view->style_plugin->even_empty()) ? $view->style_plugin->render($view->result) : '';
+  $variables['rows'] = (!empty($view->result) || $view->style_plugin->even_empty()) ? $view->style_plugin->render($view->result) : '';
   // Force a render array so CSS/JS can be added.
-  if (!is_array($vars['rows'])) {
-    $vars['rows'] = array('#markup' => $vars['rows']);
+  if (!is_array($variables['rows'])) {
+    $variables['rows'] = array('#markup' => $variables['rows']);
   }
 
-  $vars['css_name'] = drupal_clean_css_identifier($view->storage->id());
-  $vars['id'] = $view->storage->id();
-  $vars['display_id'] = $view->current_display;
+  $variables['css_name'] = drupal_clean_css_identifier($view->storage->id());
+  $variables['id'] = $view->storage->id();
+  $variables['display_id'] = $view->current_display;
 
   // Basic classes
-  $vars['css_class'] = '';
+  $variables['css_class'] = '';
 
-  $vars['attributes']['class'] = array();
-  $vars['attributes']['class'][] = 'view';
-  $vars['attributes']['class'][] = 'view-' . drupal_clean_css_identifier($vars['id']);
-  $vars['attributes']['class'][] = 'view-id-' . $vars['id'];
-  $vars['attributes']['class'][] = 'view-display-id-' . $vars['display_id'];
+  $variables['attributes']['class'] = array();
+  $variables['attributes']['class'][] = 'view';
+  $variables['attributes']['class'][] = 'view-' . drupal_clean_css_identifier($variables['id']);
+  $variables['attributes']['class'][] = 'view-id-' . $variables['id'];
+  $variables['attributes']['class'][] = 'view-display-id-' . $variables['display_id'];
 
   $css_class = $view->display_handler->getOption('css_class');
   if (!empty($css_class)) {
-    $vars['css_class'] = preg_replace('/[^a-zA-Z0-9- ]/', '-', $css_class);
-    $vars['attributes']['class'][] = $vars['css_class'];
+    $variables['css_class'] = preg_replace('/[^a-zA-Z0-9- ]/', '-', $css_class);
+    $variables['attributes']['class'][] = $variables['css_class'];
   }
 
   $empty = empty($view->result);
-  $vars['header'] = $view->display_handler->renderArea('header', $empty);
-  $vars['footer'] = $view->display_handler->renderArea('footer', $empty);
-  $vars['empty'] = $empty ? $view->display_handler->renderArea('empty', $empty) : FALSE;
+  $variables['header'] = $view->display_handler->renderArea('header', $empty);
+  $variables['footer'] = $view->display_handler->renderArea('footer', $empty);
+  $variables['empty'] = $empty ? $view->display_handler->renderArea('empty', $empty) : FALSE;
 
-  $vars['exposed']    = !empty($view->exposed_widgets) ? $view->exposed_widgets : '';
-  $vars['more']       = $view->display_handler->renderMoreLink();
-  $vars['feed_icon']  = !empty($view->feed_icon) ? $view->feed_icon : '';
+  $variables['exposed']    = !empty($view->exposed_widgets) ? $view->exposed_widgets : '';
+  $variables['more']       = $view->display_handler->renderMoreLink();
+  $variables['feed_icon']  = !empty($view->feed_icon) ? $view->feed_icon : '';
 
-  $vars['pager']      = '';
+  $variables['pager']      = '';
 
   // @todo: Figure out whether this belongs into views_ui_preprocess_views_view.
   // Render title for the admin preview.
-  $vars['title'] = !empty($view->views_ui_context) ? filter_xss_admin($view->getTitle()) : '';
+  $variables['title'] = !empty($view->views_ui_context) ? filter_xss_admin($view->getTitle()) : '';
 
   if ($view->display_handler->renderPager()) {
     $exposed_input = isset($view->exposed_raw_input) ? $view->exposed_raw_input : NULL;
-    $vars['pager'] = $view->renderPager($exposed_input);
+    $variables['pager'] = $view->renderPager($exposed_input);
   }
 
   if (!empty($view->attachment_before)) {
-    $vars['attachment_before'] = $view->attachment_before;
+    $variables['attachment_before'] = $view->attachment_before;
   }
   else {
-    $vars['attachment_before'] = array();
+    $variables['attachment_before'] = array();
   }
   if (!empty($view->attachment_after)) {
-    $vars['attachment_after'] = $view->attachment_after;
+    $variables['attachment_after'] = $view->attachment_after;
   }
   else {
-    $vars['attachment_after'] = array();
+    $variables['attachment_after'] = array();
   }
 
   // Add contextual links to the view. We need to attach them to the dummy
@@ -111,7 +111,7 @@ function template_preprocess_views_view(&$vars) {
   // purposes, it doesn't matter what we attach them to, since once they are
   // processed by contextual_preprocess() they will appear in the $title_suffix
   // variable (which we will then render in views-view.tpl.php).
-  views_add_contextual_links($vars['view_array'], 'view', $view, $view->current_display);
+  views_add_contextual_links($variables['view_array'], 'view', $view, $view->current_display);
 
   // Attachments are always updated with the outer view, never by themselves,
   // so they do not have dom ids.
@@ -125,8 +125,8 @@ function template_preprocess_views_view(&$vars) {
     // we set up a hash with the current time, $dom_id, to issue a "unique" identifier for
     // each view. This identifier is written to both Drupal.settings and the DIV
     // wrapper.
-    $vars['dom_id'] = $view->dom_id;
-    $vars['attributes']['class'][] = 'view-dom-id-' . $vars['dom_id'];
+    $variables['dom_id'] = $view->dom_id;
+    $variables['attributes']['class'][] = 'view-dom-id-' . $variables['dom_id'];
   }
 
   // If using AJAX, send identifying data about this view.
@@ -135,13 +135,13 @@ function template_preprocess_views_view(&$vars) {
       'views' => array(
         'ajax_path' => url('views/ajax'),
         'ajaxViews' => array(
-          'views_dom_id:' . $vars['dom_id'] => array(
+          'views_dom_id:' . $variables['dom_id'] => array(
             'view_name' => $view->storage->id(),
             'view_display_id' => $view->current_display,
             'view_args' => check_plain(implode('/', $view->args)),
             'view_path' => check_plain(current_path()),
             'view_base_path' => $view->getPath(),
-            'view_dom_id' => $vars['dom_id'],
+            'view_dom_id' => $variables['dom_id'],
             // To fit multiple views on a page, the programmer may have
             // overridden the display's pager_element.
             'pager_element' => isset($view->pager) ? $view->pager->get_pager_id() : 0,
@@ -156,43 +156,43 @@ function template_preprocess_views_view(&$vars) {
   // If form fields were found in the View, reformat the View output as a form.
   if (views_view_has_form_elements($view)) {
     // Copy the rows so as not to modify them by reference when rendering.
-    $rows = $vars['rows'];
+    $rows = $variables['rows'];
     $rows = drupal_render($rows);
-    $output = !empty($rows) ? $rows : $vars['empty'];
+    $output = !empty($rows) ? $rows : $variables['empty'];
     $form = drupal_get_form(views_form_id($view), $view, $output);
     // The form is requesting that all non-essential views elements be hidden,
     // usually because the rendered step is not a view result.
     if ($form['show_view_elements']['#value'] == FALSE) {
-      $vars['header'] = '';
-      $vars['exposed'] = '';
-      $vars['pager'] = '';
-      $vars['footer'] = '';
-      $vars['more'] = '';
-      $vars['feed_icon'] = '';
+      $variables['header'] = '';
+      $variables['exposed'] = '';
+      $variables['pager'] = '';
+      $variables['footer'] = '';
+      $variables['more'] = '';
+      $variables['feed_icon'] = '';
     }
-    $vars['rows'] = $form;
+    $variables['rows'] = $form;
   }
 }
 
 /**
  * Preprocess theme function to print a single record from a row, with fields
  */
-function template_preprocess_views_view_fields(&$vars) {
-  $view = $vars['view'];
+function template_preprocess_views_view_fields(&$variables) {
+  $view = $variables['view'];
 
   // Loop through the fields for this view.
   $previous_inline = FALSE;
-  $vars['fields'] = array(); // ensure it's at least an empty array.
+  $variables['fields'] = array(); // ensure it's at least an empty array.
   foreach ($view->field as $id => $field) {
     // render this even if set to exclude so it can be used elsewhere.
     $field_output = $view->style_plugin->get_field($view->row_index, $id);
     $empty = $field->is_value_empty($field_output, $field->options['empty_zero']);
-    if (empty($field->options['exclude']) && (!$empty || (empty($field->options['hide_empty']) && empty($vars['options']['hide_empty'])))) {
+    if (empty($field->options['exclude']) && (!$empty || (empty($field->options['hide_empty']) && empty($variables['options']['hide_empty'])))) {
       $object = new stdClass();
       $object->handler = &$view->field[$id];
-      $object->inline = !empty($vars['options']['inline'][$id]);
+      $object->inline = !empty($variables['options']['inline'][$id]);
 
-      $object->element_type = $object->handler->element_type(TRUE, !$vars['options']['default_field_elements'], $object->inline);
+      $object->element_type = $object->handler->element_type(TRUE, !$variables['options']['default_field_elements'], $object->inline);
       if ($object->element_type) {
         $attributes = array();
         if ($object->handler->options['element_default_classes']) {
@@ -216,22 +216,22 @@ function template_preprocess_views_view_fields(&$vars) {
       }
 
       $object->content = $field_output;
-      if (isset($view->field[$id]->field_alias) && isset($vars['row']->{$view->field[$id]->field_alias})) {
-        $object->raw = $vars['row']->{$view->field[$id]->field_alias};
+      if (isset($view->field[$id]->field_alias) && isset($variables['row']->{$view->field[$id]->field_alias})) {
+        $object->raw = $variables['row']->{$view->field[$id]->field_alias};
       }
       else {
         $object->raw = NULL; // make sure it exists to reduce NOTICE
       }
 
-      if (!empty($vars['options']['separator']) && $previous_inline && $object->inline && $object->content) {
-        $object->separator = filter_xss_admin($vars['options']['separator']);
+      if (!empty($variables['options']['separator']) && $previous_inline && $object->inline && $object->content) {
+        $object->separator = filter_xss_admin($variables['options']['separator']);
       }
 
       $object->class = drupal_clean_css_identifier($id);
 
       $previous_inline = $object->inline;
       $object->inline_html = $object->handler->element_wrapper_type(TRUE, TRUE);
-      if ($object->inline_html === '' && $vars['options']['default_field_elements']) {
+      if ($object->inline_html === '' && $variables['options']['default_field_elements']) {
         $object->inline_html = $object->inline ? 'span' : 'div';
       }
 
@@ -267,7 +267,7 @@ function template_preprocess_views_view_fields(&$vars) {
           $object->label_html .= ': ';
         }
 
-        $object->element_label_type = $object->handler->element_label_type(TRUE, !$vars['options']['default_field_elements']);
+        $object->element_label_type = $object->handler->element_label_type(TRUE, !$variables['options']['default_field_elements']);
         if ($object->element_label_type) {
           $attributes = array();
           if ($object->handler->options['element_default_classes']) {
@@ -289,7 +289,7 @@ function template_preprocess_views_view_fields(&$vars) {
         }
       }
 
-      $vars['fields'][$id] = $object;
+      $variables['fields'][$id] = $object;
     }
   }
 
@@ -298,10 +298,10 @@ function template_preprocess_views_view_fields(&$vars) {
 /**
  * Display a single views grouping.
  */
-function theme_views_view_grouping($vars) {
-  $view = $vars['view'];
-  $title = $vars['title'];
-  $content = $vars['content'];
+function theme_views_view_grouping($variables) {
+  $view = $variables['view'];
+  $title = $variables['title'];
+  $content = $variables['content'];
 
   $output = '<div class="view-grouping">';
   $output .= '<div class="view-grouping-header">' . $title . '</div>';
@@ -314,8 +314,8 @@ function theme_views_view_grouping($vars) {
 /**
  * Process a single grouping within a view.
  */
-function template_preprocess_views_view_grouping(&$vars) {
-  $vars['content'] = $vars['view']->style_plugin->render_grouping_sets($vars['rows'], $vars['grouping_level']);
+function template_preprocess_views_view_grouping(&$variables) {
+  $variables['content'] = $variables['view']->style_plugin->render_grouping_sets($variables['rows'], $variables['grouping_level']);
 }
 
 /**
@@ -325,11 +325,11 @@ function template_preprocess_views_view_grouping(&$vars) {
  * $field->field_alias says what the raw value in $row will be. Reach it like
  * this: @code { $row->{$field->field_alias} @endcode
  */
-function theme_views_view_field($vars) {
-  $view = $vars['view'];
-  $field = $vars['field'];
-  $row = $vars['row'];
-  return $vars['output'];
+function theme_views_view_field($variables) {
+  $view = $variables['view'];
+  $field = $variables['field'];
+  $row = $variables['row'];
+  return $variables['output'];
 }
 
 /**
@@ -339,17 +339,17 @@ function theme_views_view_field($vars) {
  * default, for performance. However, by creating a template, this
  * preprocess should get picked up.
  */
-function template_preprocess_views_view_field(&$vars) {
-  $vars['output'] = $vars['field']->advanced_render($vars['row']);
+function template_preprocess_views_view_field(&$variables) {
+  $variables['output'] = $variables['field']->advanced_render($variables['row']);
 }
 
 /**
  * Preprocess theme function to print a single record from a row, with fields
  */
-function template_preprocess_views_view_summary(&$vars) {
-  $view     = $vars['view'];
+function template_preprocess_views_view_summary(&$variables) {
+  $view     = $variables['view'];
   $argument = $view->argument[$view->build_info['summary_level']];
-  $vars['row_classes'] = array();
+  $variables['row_classes'] = array();
 
   $url_options = array();
 
@@ -366,14 +366,14 @@ function template_preprocess_views_view_summary(&$vars) {
   // This is not done per single argument value, because this could cause performance problems.
   $row_args = array();
 
-  foreach ($vars['rows'] as $id => $row) {
+  foreach ($variables['rows'] as $id => $row) {
     $row_args[$id] = $argument->summary_argument($row);
   }
   $argument->process_summary_arguments($row_args);
 
-  foreach ($vars['rows'] as $id => $row) {
+  foreach ($variables['rows'] as $id => $row) {
 
-    $vars['rows'][$id]->link = $argument->summary_name($row);
+    $variables['rows'][$id]->link = $argument->summary_name($row);
     $args = $view->args;
     $args[$argument->position] = $row_args[$id];
 
@@ -381,14 +381,14 @@ function template_preprocess_views_view_summary(&$vars) {
     if (!empty($argument->options['summary_options']['base_path'])) {
       $base_path = $argument->options['summary_options']['base_path'];
     }
-    $vars['rows'][$id]->url = url($view->getUrl($args, $base_path), $url_options);
-    $vars['rows'][$id]->count = intval($row->{$argument->count_alias});
+    $variables['rows'][$id]->url = url($view->getUrl($args, $base_path), $url_options);
+    $variables['rows'][$id]->count = intval($row->{$argument->count_alias});
 
-    $vars['row_classes'][$id] = array();
-    if (isset($active_urls[$vars['rows'][$id]->url])) {
-      $vars['row_classes'][$id]['class'][] = 'active';
+    $variables['row_classes'][$id] = array();
+    if (isset($active_urls[$variables['rows'][$id]->url])) {
+      $variables['row_classes'][$id]['class'][] = 'active';
     }
-    $vars['row_classes'][$id] = new Attribute($vars['row_classes'][$id]);
+    $variables['row_classes'][$id] = new Attribute($variables['row_classes'][$id]);
   }
 }
 
@@ -396,10 +396,10 @@ function template_preprocess_views_view_summary(&$vars) {
  * Template preprocess theme function to print summary basically
  * unformatted.
  */
-function template_preprocess_views_view_summary_unformatted(&$vars) {
-  $view     = $vars['view'];
+function template_preprocess_views_view_summary_unformatted(&$variables) {
+  $view     = $variables['view'];
   $argument = $view->argument[$view->build_info['summary_level']];
-  $vars['row_classes'] = array();
+  $variables['row_classes'] = array();
 
   $url_options = array();
 
@@ -416,17 +416,17 @@ function template_preprocess_views_view_summary_unformatted(&$vars) {
   // Collect all arguments foreach row, to be able to alter them for example by the validator.
   // This is not done per single argument value, because this could cause performance problems.
   $row_args = array();
-  foreach ($vars['rows'] as $id => $row) {
+  foreach ($variables['rows'] as $id => $row) {
     $row_args[$id] = $argument->summary_argument($row);
   }
   $argument->process_summary_arguments($row_args);
 
-  foreach ($vars['rows'] as $id => $row) {
+  foreach ($variables['rows'] as $id => $row) {
     // only false on first time:
     if ($count++) {
-      $vars['rows'][$id]->separator = filter_xss_admin($vars['options']['separator']);
+      $variables['rows'][$id]->separator = filter_xss_admin($variables['options']['separator']);
     }
-    $vars['rows'][$id]->link = $argument->summary_name($row);
+    $variables['rows'][$id]->link = $argument->summary_name($row);
     $args = $view->args;
     $args[$argument->position] = $row_args[$id];
 
@@ -434,31 +434,31 @@ function template_preprocess_views_view_summary_unformatted(&$vars) {
     if (!empty($argument->options['summary_options']['base_path'])) {
       $base_path = $argument->options['summary_options']['base_path'];
     }
-    $vars['rows'][$id]->url = url($view->getUrl($args, $base_path), $url_options);
-    $vars['rows'][$id]->count = intval($row->{$argument->count_alias});
-    $vars['row_classes'][$id] = array();
-    if (isset($active_urls[$vars['rows'][$id]->url])) {
-      $vars['row_classes'][$id]['class'][] = 'active';
+    $variables['rows'][$id]->url = url($view->getUrl($args, $base_path), $url_options);
+    $variables['rows'][$id]->count = intval($row->{$argument->count_alias});
+    $variables['row_classes'][$id] = array();
+    if (isset($active_urls[$variables['rows'][$id]->url])) {
+      $variables['row_classes'][$id]['class'][] = 'active';
     }
-    $vars['row_classes'][$id] = new Attribute($vars['row_classes'][$id]);
+    $variables['row_classes'][$id] = new Attribute($variables['row_classes'][$id]);
   }
 }
 
 /**
  * Display a view as a table style.
  */
-function template_preprocess_views_view_table(&$vars) {
-  $view     = $vars['view'];
+function template_preprocess_views_view_table(&$variables) {
+  $view     = $variables['view'];
 
-  // We need the raw data for this grouping, which is passed in as $vars['rows'].
+  // We need the raw data for this grouping, which is passed in as $variables['rows'].
   // However, the template also needs to use for the rendered fields.  We
-  // therefore swap the raw data out to a new variable and reset $vars['rows']
+  // therefore swap the raw data out to a new variable and reset $variables['rows']
   // so that it can get rebuilt.
   // Store rows so that they may be used by further preprocess functions.
-  $result   = $vars['result'] = $vars['rows'];
-  $vars['rows'] = array();
-  $vars['field_classes'] = array();
-  $vars['header'] = array();
+  $result   = $variables['result'] = $variables['rows'];
+  $variables['rows'] = array();
+  $variables['field_classes'] = array();
+  $variables['header'] = array();
 
   $options  = $view->style_plugin->options;
   $handler  = $view->style_plugin;
@@ -483,16 +483,16 @@ function template_preprocess_views_view_table(&$vars) {
   foreach ($columns as $field => $column) {
     // Create a second variable so we can easily find what fields we have and what the
     // CSS classes should be.
-    $vars['fields'][$field] = drupal_clean_css_identifier($field);
+    $variables['fields'][$field] = drupal_clean_css_identifier($field);
     if ($active == $field) {
-      $vars['fields'][$field] .= ' active';
+      $variables['fields'][$field] .= ' active';
     }
 
     // render the header labels
     if ($field == $column && empty($fields[$field]->options['exclude'])) {
       $label = check_plain(!empty($fields[$field]) ? $fields[$field]->label() : '');
       if (empty($options['info'][$field]['sortable']) || !$fields[$field]->click_sortable()) {
-        $vars['header'][$field] = $label;
+        $variables['header'][$field] = $label;
       }
       else {
         $initial = !empty($options['info'][$field]['default_sort_order']) ? $options['info'][$field]['default_sort_order'] : 'asc';
@@ -513,35 +513,35 @@ function template_preprocess_views_view_table(&$vars) {
           'attributes' => array('title' => $title),
           'query' => $query,
         );
-        $vars['header'][$field] = l($label, current_path(), $link_options);
+        $variables['header'][$field] = l($label, current_path(), $link_options);
       }
 
       // Set up the header label class.
-      $vars['header_classes'][$field] = array();
+      $variables['header_classes'][$field] = array();
       if ($fields[$field]->options['element_default_classes']) {
-        $vars['header_classes'][$field]['class'][] = 'views-field';
-        $vars['header_classes'][$field]['class'][] = 'views-field-' . $vars['fields'][$field];
+        $variables['header_classes'][$field]['class'][] = 'views-field';
+        $variables['header_classes'][$field]['class'][] = 'views-field-' . $variables['fields'][$field];
       }
-      $vars['header_classes'][$field] = new Attribute($vars['header_classes'][$field]);
+      $variables['header_classes'][$field] = new Attribute($variables['header_classes'][$field]);
       $class = $fields[$field]->element_label_classes(0);
       if ($class) {
-        $vars['header_classes'][$field]['class'][] = $class;
+        $variables['header_classes'][$field]['class'][] = $class;
       }
       // Add responsive header classes.
       if (!empty($options['info'][$field]['responsive'])) {
-        $vars['header_classes'][$field]['class'][] = $options['info'][$field]['responsive'];
+        $variables['header_classes'][$field]['class'][] = $options['info'][$field]['responsive'];
         $responsive = TRUE;
       }
       // Add a CSS align class to each field if one was set
       if (!empty($options['info'][$field]['align'])) {
-        $vars['header_classes'][$field]['class'][] = drupal_clean_css_identifier($options['info'][$field]['align']);
+        $variables['header_classes'][$field]['class'][] = drupal_clean_css_identifier($options['info'][$field]['align']);
       }
 
       // Add a header label wrapper if one was selected.
-      if ($vars['header'][$field]) {
+      if ($variables['header'][$field]) {
         $element_label_type = $fields[$field]->element_label_type(TRUE, TRUE);
         if ($element_label_type) {
-          $vars['header'][$field] = '<' . $element_label_type . '>' . $vars['header'][$field] . '</' . $element_label_type . '>';
+          $variables['header'][$field] = '<' . $element_label_type . '>' . $variables['header'][$field] . '</' . $element_label_type . '>';
         }
       }
 
@@ -549,25 +549,25 @@ function template_preprocess_views_view_table(&$vars) {
 
     // Add a CSS align class to each field if one was set
     if (!empty($options['info'][$field]['align'])) {
-      $vars['fields'][$field] .= ' ' . drupal_clean_css_identifier($options['info'][$field]['align']);
+      $variables['fields'][$field] .= ' ' . drupal_clean_css_identifier($options['info'][$field]['align']);
     }
 
     // Render each field into its appropriate column.
     foreach ($result as $num => $row) {
       // Add field classes
-      $vars['field_classes'][$field][$num] = array();
+      $variables['field_classes'][$field][$num] = array();
       if ($fields[$field]->options['element_default_classes']) {
-        $vars['field_classes'][$field][$num]['class'][] = 'views-field';
-        $vars['field_classes'][$field][$num]['class'][] = 'views-field-' . $vars['fields'][$field];
+        $variables['field_classes'][$field][$num]['class'][] = 'views-field';
+        $variables['field_classes'][$field][$num]['class'][] = 'views-field-' . $variables['fields'][$field];
       }
-      $vars['field_classes'][$field][$num] = new Attribute($vars['field_classes'][$field][$num]);
+      $variables['field_classes'][$field][$num] = new Attribute($variables['field_classes'][$field][$num]);
 
       if ($classes = $fields[$field]->element_classes($num)) {
-        $vars['field_classes'][$field][$num]['class'][] = $classes;
+        $variables['field_classes'][$field][$num]['class'][] = $classes;
       }
       // Add responsive header classes.
       if (!empty($options['info'][$field]['responsive'])) {
-        $vars['field_classes'][$field][$num]['class'][] = $options['info'][$field]['responsive'];
+        $variables['field_classes'][$field][$num]['class'][] = $options['info'][$field]['responsive'];
       }
 
       if (!empty($fields[$field]) && empty($fields[$field]->options['exclude'])) {
@@ -578,97 +578,97 @@ function template_preprocess_views_view_table(&$vars) {
         }
 
         // Don't bother with separators and stuff if the field does not show up.
-        if (empty($field_output) && !empty($vars['rows'][$num][$column])) {
+        if (empty($field_output) && !empty($variables['rows'][$num][$column])) {
           continue;
         }
 
         // Place the field into the column, along with an optional separator.
-        if (!empty($vars['rows'][$num][$column])) {
+        if (!empty($variables['rows'][$num][$column])) {
           if (!empty($options['info'][$column]['separator'])) {
-            $vars['rows'][$num][$column] .= filter_xss_admin($options['info'][$column]['separator']);
+            $variables['rows'][$num][$column] .= filter_xss_admin($options['info'][$column]['separator']);
           }
         }
         else {
-          $vars['rows'][$num][$column] = '';
+          $variables['rows'][$num][$column] = '';
         }
 
-        $vars['rows'][$num][$column] .= $field_output;
+        $variables['rows'][$num][$column] .= $field_output;
       }
     }
 
     // Remove columns if the option is hide empty column is checked and the field is not empty.
     if (!empty($options['info'][$field]['empty_column'])) {
       $empty = TRUE;
-      foreach ($vars['rows'] as $num => $columns) {
+      foreach ($variables['rows'] as $num => $columns) {
         $empty &= empty($columns[$column]);
       }
       if ($empty) {
-        foreach ($vars['rows'] as $num => &$column_items) {
+        foreach ($variables['rows'] as $num => &$column_items) {
           unset($column_items[$column]);
-          unset($vars['header'][$column]);
+          unset($variables['header'][$column]);
         }
       }
     }
   }
 
   // Hide table header if all labels are empty.
-  if (!array_filter($vars['header'])) {
-    $vars['header'] = array();
+  if (!array_filter($variables['header'])) {
+    $variables['header'] = array();
   }
 
   $count = 0;
-  foreach ($vars['rows'] as $num => $row) {
-    $vars['row_classes'][$num] = array();
+  foreach ($variables['rows'] as $num => $row) {
+    $variables['row_classes'][$num] = array();
     if ($row_class_special) {
-      $vars['row_classes'][$num]['class'][] = ($count++ % 2 == 0) ? 'odd' : 'even';
+      $variables['row_classes'][$num]['class'][] = ($count++ % 2 == 0) ? 'odd' : 'even';
       if ($num === 0) {
-        $vars['row_classes'][$num]['class'][] = 'views-row-first';
+        $variables['row_classes'][$num]['class'][] = 'views-row-first';
       }
-      elseif ($num === (count($vars['rows']) - 1)) {
-        $vars['row_classes'][$num]['class'][] = 'views-row-last';
+      elseif ($num === (count($variables['rows']) - 1)) {
+        $variables['row_classes'][$num]['class'][] = 'views-row-last';
       }
     }
     if ($row_class = $handler->get_row_class($num)) {
-      $vars['row_classes'][$num]['class'][] = $row_class;
+      $variables['row_classes'][$num]['class'][] = $row_class;
     }
-    $vars['row_classes'][$num] = new Attribute($vars['row_classes'][$num]);
+    $variables['row_classes'][$num] = new Attribute($variables['row_classes'][$num]);
   }
 
-  $vars['attributes']['class'][] = 'views-table';
-  if (empty($vars['rows']) && !empty($options['empty_table'])) {
-    $vars['rows'][0][0] = $view->display_handler->renderArea('empty');
+  $variables['attributes']['class'][] = 'views-table';
+  if (empty($variables['rows']) && !empty($options['empty_table'])) {
+    $variables['rows'][0][0] = $view->display_handler->renderArea('empty');
     // Calculate the amounts of rows with output.
-    $vars['field_classes'][0][0] = new Attribute(array(
-      'colspan' => count($vars['header']),
+    $variables['field_classes'][0][0] = new Attribute(array(
+      'colspan' => count($variables['header']),
       'class' => 'views-empty',
     ));
   }
 
   if (!empty($options['sticky'])) {
-    $vars['view']->element['#attached']['library'][] = array('system', 'drupal.tableheader');
-    $vars['attributes']['class'][] = "sticky-enabled";
+    $variables['view']->element['#attached']['library'][] = array('system', 'drupal.tableheader');
+    $variables['attributes']['class'][] = "sticky-enabled";
   }
-  $vars['attributes']['class'][] = 'cols-' . count($vars['header']);
+  $variables['attributes']['class'][] = 'cols-' . count($variables['header']);
 
   if (!empty($handler->options['summary'])) {
-    $vars['attributes_array'] = array('summary' => $handler->options['summary']);
+    $variables['attributes_array'] = array('summary' => $handler->options['summary']);
   }
   // If the table has headers and it should react responsively to columns hidden
   // with the classes represented by the constants RESPONSIVE_PRIORITY_MEDIUM
   // and RESPONSIVE_PRIORITY_LOW, add the tableresponsive behaviors.
-  if (count($vars['header']) && $responsive) {
-    $vars['view']->element['#attached']['library'][] = array('system', 'drupal.tableresponsive');
+  if (count($variables['header']) && $responsive) {
+    $variables['view']->element['#attached']['library'][] = array('system', 'drupal.tableresponsive');
     // Add 'responsive-enabled' class to the table to identify it for JS.
     // This is needed to target tables constructed by this function.
-    $vars['attributes']['class'][] = 'responsive-enabled';
+    $variables['attributes']['class'][] = 'responsive-enabled';
   }
 }
 
 /**
  * Display a view as a grid style.
  */
-function template_preprocess_views_view_grid(&$vars) {
-  $view     = $vars['view'];
+function template_preprocess_views_view_grid(&$variables) {
+  $view     = $variables['view'];
   $result   = $view->result;
   $options  = $view->style_plugin->options;
   $handler  = $view->style_plugin;
@@ -676,7 +676,7 @@ function template_preprocess_views_view_grid(&$vars) {
   $row_class_special = isset($options['row_class_special']) ? $options['row_class_special'] : TRUE;
 
   $columns  = $options['columns'];
-  $vars['attributes']['class'][] = 'views-view-grid cols-' . $columns;
+  $variables['attributes']['class'][] = 'views-view-grid cols-' . $columns;
 
   $rows = array();
   $row_indexes = array();
@@ -686,7 +686,7 @@ function template_preprocess_views_view_grid(&$vars) {
     $col_count = 0;
     $row_count = 0;
     $count = 0;
-    foreach ($vars['rows'] as $row_index => $item) {
+    foreach ($variables['rows'] as $row_index => $item) {
       $count++;
       $row[] = $item;
       $row_indexes[$row_count][$col_count] = $row_index;
@@ -709,12 +709,12 @@ function template_preprocess_views_view_grid(&$vars) {
     }
   }
   else {
-    $num_rows = floor(count($vars['rows']) / $columns);
+    $num_rows = floor(count($variables['rows']) / $columns);
     // The remainders are the 'odd' columns that are slightly longer.
-    $remainders = count($vars['rows']) % $columns;
+    $remainders = count($variables['rows']) % $columns;
     $row = 0;
     $col = 0;
-    foreach ($vars['rows'] as $count => $item) {
+    foreach ($variables['rows'] as $count => $item) {
       $rows[$row][$col] = $item;
       $row_indexes[$row][$col] = $count;
       $row++;
@@ -754,84 +754,84 @@ function template_preprocess_views_view_grid(&$vars) {
     $row_classes = new Attribute($row_classes);
 
     foreach ($rows[$row_number] as $column_number => $item) {
-      $vars['column_classes'][$row_number][$column_number] = array();
+      $variables['column_classes'][$row_number][$column_number] = array();
       if ($default_row_class) {
-        $vars['column_classes'][$row_number][$column_number]['class'][] = 'col-' . ($column_number + 1);
+        $variables['column_classes'][$row_number][$column_number]['class'][] = 'col-' . ($column_number + 1);
       }
       if ($row_class_special) {
         if ($column_number == 0) {
-          $vars['column_classes'][$row_number][$column_number]['class'][] = 'col-first';
+          $variables['column_classes'][$row_number][$column_number]['class'][] = 'col-first';
         }
         elseif (count($rows[$row_number]) == ($column_number + 1)) {
-          $vars['column_classes'][$row_number][$column_number]['class'][] = 'col-last';
+          $variables['column_classes'][$row_number][$column_number]['class'][] = 'col-last';
         }
       }
       if (isset($row_indexes[$row_number][$column_number]) && $column_class = $view->style_plugin->get_row_class($row_indexes[$row_number][$column_number])) {
-        $vars['column_classes'][$row_number][$column_number]['class'][] = $column_class;
+        $variables['column_classes'][$row_number][$column_number]['class'][] = $column_class;
       }
-      $vars['column_classes'][$row_number][$column_number] = new Attribute($vars['column_classes'][$row_number][$column_number]);
+      $variables['column_classes'][$row_number][$column_number] = new Attribute($variables['column_classes'][$row_number][$column_number]);
     }
   }
-  $vars['rows'] = $rows;
+  $variables['rows'] = $rows;
   if (!empty($handler->options['summary'])) {
-    $vars['attributes_array'] = array('summary' => $handler->options['summary']);
+    $variables['attributes_array'] = array('summary' => $handler->options['summary']);
   }
   // If the table has headers and it should react responsively to columns hidden
   // with the classes represented by the constants RESPONSIVE_PRIORITY_MEDIUM
   // and RESPONSIVE_PRIORITY_LOW, add the tableresponsive behaviors.
-  if (count($vars['header']) && $responsive) {
-    $vars['view']->element['#attached']['library'][] = array('system', 'drupal.tableresponsive');
+  if (count($variables['header']) && $responsive) {
+    $variables['view']->element['#attached']['library'][] = array('system', 'drupal.tableresponsive');
     // Add 'responsive-enabled' class to the table to identify it for JS.
     // This is needed to target tables constructed by this function.
-    $vars['attributes']['class'][] = 'responsive-enabled';
+    $variables['attributes']['class'][] = 'responsive-enabled';
   }
 }
 
 /**
  * Display the simple view of rows one after another
  */
-function template_preprocess_views_view_unformatted(&$vars) {
-  $view = $vars['view'];
-  $rows = $vars['rows'];
+function template_preprocess_views_view_unformatted(&$variables) {
+  $view = $variables['view'];
+  $rows = $variables['rows'];
   $style = $view->style_plugin;
   $options = $style->options;
 
-  $vars['row_classes'] = array();
-  $vars['classes'] = array();
+  $variables['row_classes'] = array();
+  $variables['classes'] = array();
   $default_row_class = isset($options['default_row_class']) ? $options['default_row_class'] : FALSE;
   $row_class_special = isset($options['row_class_special']) ? $options['row_class_special'] : FALSE;
   // Set up striping values.
   $count = 0;
   $max = count($rows);
   foreach ($rows as $id => $row) {
-    $vars['row_classes'][$id] = array();
+    $variables['row_classes'][$id] = array();
     $count++;
     if ($default_row_class) {
-      $vars['row_classes'][$id]['class'][] = 'views-row';
-      $vars['row_classes'][$id]['class'][] = 'views-row-' . $count;
+      $variables['row_classes'][$id]['class'][] = 'views-row';
+      $variables['row_classes'][$id]['class'][] = 'views-row-' . $count;
     }
     if ($row_class_special) {
-      $vars['row_classes'][$id]['class'][] = 'views-row-' . ($count % 2 ? 'odd' : 'even');
+      $variables['row_classes'][$id]['class'][] = 'views-row-' . ($count % 2 ? 'odd' : 'even');
       if ($count == 1) {
-        $vars['row_classes'][$id]['class'][] = 'views-row-first';
+        $variables['row_classes'][$id]['class'][] = 'views-row-first';
       }
       if ($count == $max) {
-        $vars['row_classes'][$id]['class'][] = 'views-row-last';
+        $variables['row_classes'][$id]['class'][] = 'views-row-last';
       }
     }
 
     if ($row_class = $view->style_plugin->get_row_class($id)) {
-      $vars['row_classes'][$id]['class'][] = $row_class;
+      $variables['row_classes'][$id]['class'][] = $row_class;
     }
-    $vars['row_classes'][$id] = new Attribute($vars['row_classes'][$id]);
+    $variables['row_classes'][$id] = new Attribute($variables['row_classes'][$id]);
   }
 }
 
 /**
  * Display the view as an HTML list element
  */
-function template_preprocess_views_view_list(&$vars) {
-  $handler  = $vars['view']->style_plugin;
+function template_preprocess_views_view_list(&$variables) {
+  $handler  = $variables['view']->style_plugin;
 
   // Fetch classes from handler options.
   $class = explode(' ', $handler->options['class']);
@@ -847,25 +847,25 @@ function template_preprocess_views_view_list(&$vars) {
   // Initialize a new attribute class for $wrapper_class.
   if ($wrapper_class) {
     $wrapper_class = new Attribute(array('class' => $wrapper_class));
-    $vars['wrapper_prefix'] = '<div' . $wrapper_class . '>';
-    $vars['wrapper_suffix'] = '</div>';
+    $variables['wrapper_prefix'] = '<div' . $wrapper_class . '>';
+    $variables['wrapper_suffix'] = '</div>';
   }
 
-  $vars['list_type_prefix'] = '<' . $handler->options['type'] . $attributes . '>';
-  $vars['list_type_suffix'] = '</' . $handler->options['type'] . '>';
+  $variables['list_type_prefix'] = '<' . $handler->options['type'] . $attributes . '>';
+  $variables['list_type_suffix'] = '</' . $handler->options['type'] . '>';
 
-  template_preprocess_views_view_unformatted($vars);
+  template_preprocess_views_view_unformatted($variables);
 }
 
 /**
  * Preprocess an RSS feed
  */
-function template_preprocess_views_view_rss(&$vars) {
+function template_preprocess_views_view_rss(&$variables) {
   global $base_url;
 
-  $view     = &$vars['view'];
-  $options  = &$vars['options'];
-  $items    = &$vars['rows'];
+  $view     = &$variables['view'];
+  $options  = &$variables['options'];
+  $items    = &$variables['rows'];
 
   $style    = &$view->style_plugin;
 
@@ -874,7 +874,7 @@ function template_preprocess_views_view_rss(&$vars) {
   // The RSS 2.0 "spec" doesn't indicate HTML can be used in the description.
   // We strip all HTML tags, but need to prevent double encoding from properly
   // escaped source data (such as &amp becoming &amp;amp;).
-  $vars['description'] = check_plain(decode_entities(strip_tags($style->get_description())));
+  $variables['description'] = check_plain(decode_entities(strip_tags($style->get_description())));
 
   if ($view->display_handler->getOption('sitename_title')) {
     $title = $config->get('name');
@@ -885,7 +885,7 @@ function template_preprocess_views_view_rss(&$vars) {
   else {
     $title = $view->getTitle();
   }
-  $vars['title'] = check_plain($title);
+  $variables['title'] = check_plain($title);
 
   // Figure out which display which has a path we're using for this feed. If there isn't
   // one, use the global $base_url
@@ -906,49 +906,49 @@ function template_preprocess_views_view_rss(&$vars) {
       $path = '';
     }
 
-    $vars['link'] = check_url(url($path, $url_options));
+    $variables['link'] = check_url(url($path, $url_options));
   }
 
-  $vars['langcode'] = check_plain(language(LANGUAGE_TYPE_INTERFACE)->langcode);
-  $vars['namespaces'] = new Attribute($style->namespaces);
-  $vars['items'] = $items;
-  $vars['channel_elements'] = format_xml_elements($style->channel_elements);
+  $variables['langcode'] = check_plain(language(LANGUAGE_TYPE_INTERFACE)->langcode);
+  $variables['namespaces'] = new Attribute($style->namespaces);
+  $variables['items'] = $items;
+  $variables['channel_elements'] = format_xml_elements($style->channel_elements);
 
   // During live preview we don't want to output the header since the contents
   // of the feed are being displayed inside a normal HTML page.
-  if (empty($vars['view']->live_preview)) {
-    $vars['view']->getResponse()->headers->set('Content-Type', 'application/rss+xml; charset=utf-8');
+  if (empty($variables['view']->live_preview)) {
+    $variables['view']->getResponse()->headers->set('Content-Type', 'application/rss+xml; charset=utf-8');
   }
 }
 
 /**
  * Default theme function for all RSS rows.
  */
-function template_preprocess_views_view_row_rss(&$vars) {
-  $view     = &$vars['view'];
-  $options  = &$vars['options'];
-  $item     = &$vars['row'];
-
-  $vars['title'] = check_plain($item->title);
-  $vars['link'] = check_url($item->link);
-  $vars['description'] = check_plain($item->description);
-  $vars['item_elements'] = empty($item->elements) ? '' : format_xml_elements($item->elements);
+function template_preprocess_views_view_row_rss(&$variables) {
+  $view     = &$variables['view'];
+  $options  = &$variables['options'];
+  $item     = &$variables['row'];
+
+  $variables['title'] = check_plain($item->title);
+  $variables['link'] = check_url($item->link);
+  $variables['description'] = check_plain($item->description);
+  $variables['item_elements'] = empty($item->elements) ? '' : format_xml_elements($item->elements);
 }
 
 /**
  * Default theme function for all filter forms.
  */
-function template_preprocess_views_exposed_form(&$vars) {
-  $form = &$vars['form'];
+function template_preprocess_views_exposed_form(&$variables) {
+  $form = &$variables['form'];
 
   // Put all single checkboxes together in the last spot.
   $checkboxes = '';
 
   if (!empty($form['q'])) {
-    $vars['q'] = drupal_render($form['q']);
+    $variables['q'] = drupal_render($form['q']);
   }
 
-  $vars['widgets'] = array();
+  $variables['widgets'] = array();
   foreach ($form['#info'] as $id => $info) {
     // Set aside checkboxes.
     if (isset($form[$info['value']]['#type']) && $form[$info['value']]['#type'] == 'checkbox') {
@@ -974,7 +974,7 @@ function template_preprocess_views_exposed_form(&$vars) {
       $widget->description = check_plain($info['description']);
     }
 
-    $vars['widgets'][$id] = $widget;
+    $variables['widgets'][$id] = $widget;
   }
 
   // Wrap up all the checkboxes we set aside into a widget.
@@ -984,24 +984,24 @@ function template_preprocess_views_exposed_form(&$vars) {
     $widget->label = $widget->operator = $widget->widget = NULL;
     $widget->id = 'checkboxes';
     $widget->widget = $checkboxes;
-    $vars['widgets']['checkboxes'] = $widget;
+    $variables['widgets']['checkboxes'] = $widget;
   }
 
   if (isset($form['sort_by'])) {
-    $vars['sort_by'] = drupal_render($form['sort_by']);
-    $vars['sort_order'] = drupal_render($form['sort_order']);
+    $variables['sort_by'] = drupal_render($form['sort_by']);
+    $variables['sort_order'] = drupal_render($form['sort_order']);
   }
   if (isset($form['items_per_page'])) {
-    $vars['items_per_page'] = drupal_render($form['items_per_page']);
+    $variables['items_per_page'] = drupal_render($form['items_per_page']);
   }
   if (isset($form['offset'])) {
-    $vars['offset'] = drupal_render($form['offset']);
+    $variables['offset'] = drupal_render($form['offset']);
   }
   if (isset($form['reset'])) {
-    $vars['reset_button'] = drupal_render($form['reset']);
+    $variables['reset_button'] = drupal_render($form['reset']);
   }
   // This includes the submit button.
-  $vars['button'] = drupal_render_children($form);
+  $variables['button'] = drupal_render_children($form);
 }
 
 /**
@@ -1036,12 +1036,12 @@ function theme_views_form_views_form($variables) {
   return drupal_render_children($form);
 }
 
-function theme_views_mini_pager($vars) {
+function theme_views_mini_pager($variables) {
   global $pager_page_array, $pager_total;
 
-  $tags = $vars['tags'];
-  $element = $vars['element'];
-  $parameters = $vars['parameters'];
+  $tags = $variables['tags'];
+  $element = $variables['element'];
+  $parameters = $variables['parameters'];
 
   // Current is the page we are currently paged to.
   $pager_current = $pager_page_array[$element] + 1;
diff --git a/core/modules/views/views_ui/views_ui.module b/core/modules/views/views_ui/views_ui.module
index 8434656..3e306e4 100644
--- a/core/modules/views/views_ui/views_ui.module
+++ b/core/modules/views/views_ui/views_ui.module
@@ -244,21 +244,21 @@ function views_ui_cache_set(ViewUI $view) {
 /**
  * Theme preprocess for views-view.tpl.php.
  */
-function views_ui_preprocess_views_view(&$vars) {
-  $view = $vars['view'];
+function views_ui_preprocess_views_view(&$variables) {
+  $view = $variables['view'];
   if (!empty($view->live_preview) && Drupal::moduleHandler()->moduleExists('contextual')) {
     $view->hide_admin_links = TRUE;
     foreach (array('title', 'header', 'exposed', 'rows', 'pager', 'more', 'footer', 'empty', 'attachment_after', 'attachment_before') as $section) {
-      if (!empty($vars[$section])) {
-        $vars[$section] = array(
+      if (!empty($variables[$section])) {
+        $variables[$section] = array(
           '#theme' => 'views_ui_view_preview_section',
           '#view' => $view,
           '#section' => $section,
-          '#content' => is_array($vars[$section]) ? drupal_render($vars[$section]) : $vars[$section],
+          '#content' => is_array($variables[$section]) ? drupal_render($variables[$section]) : $variables[$section],
           '#theme_wrappers' => array('views_ui_container'),
           '#attributes' => array('class' => 'contextual-region'),
         );
-        $vars[$section] = drupal_render($vars[$section]);
+        $variables[$section] = drupal_render($variables[$section]);
       }
     }
   }
diff --git a/core/modules/views/views_ui/views_ui.theme.inc b/core/modules/views/views_ui/views_ui.theme.inc
index 2f92bdd..d1a010f 100644
--- a/core/modules/views/views_ui/views_ui.theme.inc
+++ b/core/modules/views/views_ui/views_ui.theme.inc
@@ -187,8 +187,8 @@ function theme_views_ui_build_group_filter_form($variables) {
 /**
  * Turn the reorder form into a proper table
  */
-function theme_views_ui_reorder_displays_form($vars) {
-  $form = $vars['form'];
+function theme_views_ui_reorder_displays_form($variables) {
+  $form = $variables['form'];
   $rows = array();
   foreach (element_children($form) as $key) {
     if (isset($form[$key]['#display'])) {
@@ -277,8 +277,8 @@ function theme_views_ui_rearrange_form($variables) {
 /**
  * Turn the rearrange form into a proper table
  */
-function theme_views_ui_rearrange_filter_form(&$vars) {
-  $form = $vars['form'];
+function theme_views_ui_rearrange_filter_form(&$variables) {
+  $form = $variables['form'];
   $rows = $ungroupable_rows = array();
   // Enable grouping only if > 1 group.
   $grouping = count(array_keys($form['#group_options'])) > 1;
@@ -449,49 +449,49 @@ function theme_views_ui_style_plugin_table($variables) {
 /**
  * Theme preprocess for theme_views_ui_view_preview_section().
  */
-function template_preprocess_views_ui_view_preview_section(&$vars) {
-  switch ($vars['section']) {
+function template_preprocess_views_ui_view_preview_section(&$variables) {
+  switch ($variables['section']) {
     case 'title':
-      $vars['title'] = t('Title');
-      $links = views_ui_view_preview_section_display_category_links($vars['view'], 'title', $vars['title']);
+      $variables['title'] = t('Title');
+      $links = views_ui_view_preview_section_display_category_links($variables['view'], 'title', $variables['title']);
       break;
     case 'header':
-      $vars['title'] = t('Header');
-      $links = views_ui_view_preview_section_handler_links($vars['view'], $vars['section']);
+      $variables['title'] = t('Header');
+      $links = views_ui_view_preview_section_handler_links($variables['view'], $variables['section']);
       break;
     case 'empty':
-      $vars['title'] = t('No results behavior');
-      $links = views_ui_view_preview_section_handler_links($vars['view'], $vars['section']);
+      $variables['title'] = t('No results behavior');
+      $links = views_ui_view_preview_section_handler_links($variables['view'], $variables['section']);
       break;
     case 'exposed':
       // @todo Sorts can be exposed too, so we may need a better title.
-      $vars['title'] = t('Exposed Filters');
-      $links = views_ui_view_preview_section_display_category_links($vars['view'], 'exposed_form_options', $vars['title']);
+      $variables['title'] = t('Exposed Filters');
+      $links = views_ui_view_preview_section_display_category_links($variables['view'], 'exposed_form_options', $variables['title']);
       break;
     case 'rows':
       // @todo The title needs to depend on what is being viewed.
-      $vars['title'] = t('Content');
-      $links = views_ui_view_preview_section_rows_links($vars['view']);
+      $variables['title'] = t('Content');
+      $links = views_ui_view_preview_section_rows_links($variables['view']);
       break;
     case 'pager':
-      $vars['title'] = t('Pager');
-      $links = views_ui_view_preview_section_display_category_links($vars['view'], 'pager_options', $vars['title']);
+      $variables['title'] = t('Pager');
+      $links = views_ui_view_preview_section_display_category_links($variables['view'], 'pager_options', $variables['title']);
       break;
     case 'more':
-      $vars['title'] = t('More');
-      $links = views_ui_view_preview_section_display_category_links($vars['view'], 'use_more', $vars['title']);
+      $variables['title'] = t('More');
+      $links = views_ui_view_preview_section_display_category_links($variables['view'], 'use_more', $variables['title']);
       break;
     case 'footer':
-      $vars['title'] = t('Footer');
-      $links = views_ui_view_preview_section_handler_links($vars['view'], $vars['section']);
+      $variables['title'] = t('Footer');
+      $links = views_ui_view_preview_section_handler_links($variables['view'], $variables['section']);
       break;
     case 'attachment_before':
       // @todo: Add links to the attachment configuration page.
-      $vars['title'] = t('Attachment before');
+      $variables['title'] = t('Attachment before');
       break;
     case 'attachment_after':
       // @todo: Add links to the attachment configuration page.
-      $vars['title'] = t('Attachment after');
+      $variables['title'] = t('Attachment after');
       break;
   }
 
@@ -506,16 +506,16 @@ function template_preprocess_views_ui_view_preview_section(&$vars) {
         'library' => array(array('contextual', 'drupal.contextual-links')),
       ),
     );
-    $vars['links'] = drupal_render($build);
+    $variables['links'] = drupal_render($build);
   }
-  $vars['theme_hook_suggestions'][] = 'views_ui_view_preview_section__' . $vars['section'];
+  $variables['theme_hook_suggestions'][] = 'views_ui_view_preview_section__' . $variables['section'];
 }
 
 /**
  * Returns the HTML for a section of a View being previewed within the Views UI.
  */
-function theme_views_ui_view_preview_section($vars) {
-  return '<h1 class="section-title">' . $vars['title'] . '</h1>'
-  . $vars['links']
-  . '<div class="preview-section">'. $vars['content'] . '</div>';
+function theme_views_ui_view_preview_section($variables) {
+  return '<h1 class="section-title">' . $variables['title'] . '</h1>'
+  . $variables['links']
+  . '<div class="preview-section">'. $variables['content'] . '</div>';
 }
diff --git a/core/themes/seven/template.php b/core/themes/seven/template.php
index fa7124c..e2157c5 100644
--- a/core/themes/seven/template.php
+++ b/core/themes/seven/template.php
@@ -8,19 +8,19 @@
 /**
  * Implements hook_preprocess_HOOK() for maintenance-page.tpl.php.
  */
-function seven_preprocess_maintenance_page(&$vars) {
+function seven_preprocess_maintenance_page(&$variables) {
   // While markup for normal pages is split into page.tpl.php and html.tpl.php,
   // the markup for the maintenance page is all in the single
   // maintenance-page.tpl.php template. So, to have what's done in
   // seven_preprocess_html() also happen on the maintenance page, it has to be
   // called here.
-  seven_preprocess_html($vars);
+  seven_preprocess_html($variables);
 }
 
 /**
  * Implements hook_preprocess_HOOK() for html.tpl.php.
  */
-function seven_preprocess_html(&$vars) {
+function seven_preprocess_html(&$variables) {
   drupal_add_library('system', 'normalize');
   // Add conditional CSS for IE8 and below.
   drupal_add_css(path_to_theme() . '/ie.css', array('group' => CSS_AGGREGATE_THEME, 'browsers' => array('IE' => 'lte IE 8', '!IE' => FALSE), 'weight' => 999, 'preprocess' => FALSE));
@@ -29,12 +29,12 @@ function seven_preprocess_html(&$vars) {
 /**
  * Implements hook_preprocess_HOOK() for page.tpl.php.
  */
-function seven_preprocess_page(&$vars) {
-  $vars['primary_local_tasks'] = $vars['tabs'];
-  unset($vars['primary_local_tasks']['#secondary']);
-  $vars['secondary_local_tasks'] = array(
+function seven_preprocess_page(&$variables) {
+  $variables['primary_local_tasks'] = $variables['tabs'];
+  unset($variables['primary_local_tasks']['#secondary']);
+  $variables['secondary_local_tasks'] = array(
     '#theme' => 'menu_local_tasks',
-    '#secondary' => isset($vars['tabs']['#secondary']) ? $vars['tabs']['#secondary'] : '',
+    '#secondary' => isset($variables['tabs']['#secondary']) ? $variables['tabs']['#secondary'] : '',
   );
 }
 
diff --git a/core/vendor/guzzle/parser/Guzzle/Parser/UriTemplate/UriTemplate.php b/core/vendor/guzzle/parser/Guzzle/Parser/UriTemplate/UriTemplate.php
index 00d2310..a944a80 100644
--- a/core/vendor/guzzle/parser/Guzzle/Parser/UriTemplate/UriTemplate.php
+++ b/core/vendor/guzzle/parser/Guzzle/Parser/UriTemplate/UriTemplate.php
@@ -82,20 +82,20 @@ private function parseExpression($expression)
         $values = explode(',', $expression);
         foreach ($values as &$value) {
             $value = trim($value);
-            $varspec = array();
+            $variablespec = array();
             $substrPos = strpos($value, ':');
             if ($substrPos) {
-                $varspec['value'] = substr($value, 0, $substrPos);
-                $varspec['modifier'] = ':';
-                $varspec['position'] = (int) substr($value, $substrPos + 1);
+                $variablespec['value'] = substr($value, 0, $substrPos);
+                $variablespec['modifier'] = ':';
+                $variablespec['position'] = (int) substr($value, $substrPos + 1);
             } elseif (substr($value, -1) == '*') {
-                $varspec['modifier'] = '*';
-                $varspec['value'] = substr($value, 0, -1);
+                $variablespec['modifier'] = '*';
+                $variablespec['value'] = substr($value, 0, -1);
             } else {
-                $varspec['value'] = (string) $value;
-                $varspec['modifier'] = '';
+                $variablespec['value'] = (string) $value;
+                $variablespec['modifier'] = '';
             }
-            $value = $varspec;
+            $value = $variablespec;
         }
 
         return array(
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/AssetCollection.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/AssetCollection.php
index 8a9afe8..c4d2e91 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/AssetCollection.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/AssetCollection.php
@@ -29,7 +29,7 @@ class AssetCollection implements \IteratorAggregate, AssetCollectionInterface
     private $targetPath;
     private $content;
     private $clones;
-    private $vars;
+    private $variables;
     private $values;
 
     /**
@@ -39,7 +39,7 @@ class AssetCollection implements \IteratorAggregate, AssetCollectionInterface
      * @param array  $filters    Filters for the current collection
      * @param string $sourceRoot The root directory
      */
-    public function __construct($assets = array(), $filters = array(), $sourceRoot = null, array $vars = array())
+    public function __construct($assets = array(), $filters = array(), $sourceRoot = null, array $variables = array())
     {
         $this->assets = array();
         foreach ($assets as $asset) {
@@ -49,7 +49,7 @@ public function __construct($assets = array(), $filters = array(), $sourceRoot =
         $this->filters = new FilterCollection($filters);
         $this->sourceRoot = $sourceRoot;
         $this->clones = new \SplObjectStorage();
-        $this->vars = $vars;
+        $this->vars = $variables;
         $this->values = array();
     }
 
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/BaseAsset.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/BaseAsset.php
index 1ce93ae..cdf618b 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/BaseAsset.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/BaseAsset.php
@@ -30,7 +30,7 @@
     private $targetPath;
     private $content;
     private $loaded;
-    private $vars;
+    private $variables;
     private $values;
 
     /**
@@ -38,12 +38,12 @@
      *
      * @param array $filters Filters for the asset
      */
-    public function __construct($filters = array(), $sourceRoot = null, $sourcePath = null, array $vars = array())
+    public function __construct($filters = array(), $sourceRoot = null, $sourcePath = null, array $variables = array())
     {
         $this->filters = new FilterCollection($filters);
         $this->sourceRoot = $sourceRoot;
         $this->sourcePath = $sourcePath;
-        $this->vars = $vars;
+        $this->vars = $variables;
         $this->values = array();
         $this->loaded = false;
     }
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php
index 0933ade..5ebbbe9 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php
@@ -33,7 +33,7 @@ class FileAsset extends BaseAsset
      *
      * @throws \InvalidArgumentException If the supplied root doesn't match the source when guessing the path
      */
-    public function __construct($source, $filters = array(), $sourceRoot = null, $sourcePath = null, array $vars = array())
+    public function __construct($source, $filters = array(), $sourceRoot = null, $sourcePath = null, array $variables = array())
     {
         if (null === $sourceRoot) {
             $sourceRoot = dirname($source);
@@ -50,7 +50,7 @@ public function __construct($source, $filters = array(), $sourceRoot = null, $so
 
         $this->source = $source;
 
-        parent::__construct($filters, $sourceRoot, $sourcePath, $vars);
+        parent::__construct($filters, $sourceRoot, $sourcePath, $variables);
     }
 
     public function load(FilterInterface $additionalFilter = null)
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/GlobAsset.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/GlobAsset.php
index 4f8559c..a9c3f7e 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/GlobAsset.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/GlobAsset.php
@@ -32,12 +32,12 @@ class GlobAsset extends AssetCollection
      * @param array        $filters An array of filters
      * @param string       $root    The root directory
      */
-    public function __construct($globs, $filters = array(), $root = null, array $vars = array())
+    public function __construct($globs, $filters = array(), $root = null, array $variables = array())
     {
         $this->globs = (array) $globs;
         $this->initialized = false;
 
-        parent::__construct(array(), $filters, $root, $vars);
+        parent::__construct(array(), $filters, $root, $variables);
     }
 
     public function all()
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/HttpAsset.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/HttpAsset.php
index d1dcfe0..1af5ec4 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/HttpAsset.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Asset/HttpAsset.php
@@ -33,7 +33,7 @@ class HttpAsset extends BaseAsset
      *
      * @throws \InvalidArgumentException If the first argument is not an URL
      */
-    public function __construct($sourceUrl, $filters = array(), $ignoreErrors = false, array $vars = array())
+    public function __construct($sourceUrl, $filters = array(), $ignoreErrors = false, array $variables = array())
     {
         if (0 === strpos($sourceUrl, '//')) {
             $sourceUrl = 'http:'.$sourceUrl;
@@ -47,7 +47,7 @@ public function __construct($sourceUrl, $filters = array(), $ignoreErrors = fals
         list($scheme, $url) = explode('://', $sourceUrl, 2);
         list($host, $path) = explode('/', $url, 2);
 
-        parent::__construct($filters, $scheme.'://'.$host, $path, $vars);
+        parent::__construct($filters, $scheme.'://'.$host, $path, $variables);
     }
 
     public function load(FilterInterface $additionalFilter = null)
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/AssetWriter.php b/core/vendor/kriswallsmith/assetic/src/Assetic/AssetWriter.php
index b1a90ad..a165d68 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/AssetWriter.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/AssetWriter.php
@@ -63,16 +63,16 @@ public function writeAsset(AssetInterface $asset)
         }
     }
 
-    private function getCombinations(array $vars)
+    private function getCombinations(array $variables)
     {
-        if (!$vars) {
+        if (!$variables) {
             return array(array());
         }
 
         $combinations = array();
         $nbValues = array();
         foreach ($this->varValues as $var => $values) {
-            if (!in_array($var, $vars, true)) {
+            if (!in_array($var, $variables, true)) {
                 continue;
             }
 
@@ -83,7 +83,7 @@ private function getCombinations(array $vars)
             $k = $i;
             $combination = array();
 
-            foreach ($vars as $var) {
+            foreach ($variables as $var) {
                 $combination[$var] = $this->varValues[$var][$k % $nbValues[$var]];
                 $k = intval($k/$nbValues[$var]);
             }
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticNode.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticNode.php
index 8209dfa..bc91143 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticNode.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticNode.php
@@ -101,10 +101,10 @@ protected function compileDebug(\Twig_Compiler $compiler)
 
     protected function compileAsset(\Twig_Compiler $compiler, AssetInterface $asset, $name)
     {
-        if ($vars = $asset->getVars()) {
+        if ($variables = $asset->getVars()) {
             $compiler->write("// check variable conditions\n");
 
-            foreach ($vars as $var) {
+            foreach ($variables as $var) {
                 $compiler
                     ->write("if (!isset(\$context['assetic']['vars']['$var'])) {\n")
                     ->indent()
@@ -134,7 +134,7 @@ protected function compileAsset(\Twig_Compiler $compiler, AssetInterface $asset,
 
     protected function compileAssetUrl(\Twig_Compiler $compiler, AssetInterface $asset, $name)
     {
-        if (!$vars = $asset->getVars()) {
+        if (!$variables = $asset->getVars()) {
             $compiler->repr($asset->getTargetPath());
 
             return;
@@ -147,7 +147,7 @@ protected function compileAssetUrl(\Twig_Compiler $compiler, AssetInterface $ass
         ;
 
         $first = true;
-        foreach ($vars as $var) {
+        foreach ($variables as $var) {
             if (!$first) {
                 $compiler->raw(", ");
             }
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/AssetFactory.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/AssetFactory.php
index c4393c0..9f966a7 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/AssetFactory.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/AssetFactory.php
@@ -307,19 +307,19 @@ protected function createAssetReference($name)
         return new AssetReference($this->am, $name);
     }
 
-    protected function createHttpAsset($sourceUrl, $vars)
+    protected function createHttpAsset($sourceUrl, $variables)
     {
-        return new HttpAsset($sourceUrl, array(), false, $vars);
+        return new HttpAsset($sourceUrl, array(), false, $variables);
     }
 
-    protected function createGlobAsset($glob, $root = null, $vars)
+    protected function createGlobAsset($glob, $root = null, $variables)
     {
-        return new GlobAsset($glob, array(), $root, $vars);
+        return new GlobAsset($glob, array(), $root, $variables);
     }
 
-    protected function createFileAsset($source, $root = null, $path = null, $vars)
+    protected function createFileAsset($source, $root = null, $path = null, $variables)
     {
-        return new FileAsset($source, array(), $root, $path, $vars);
+        return new FileAsset($source, array(), $root, $path, $variables);
     }
 
     protected function getFilter($name)
diff --git a/core/vendor/kriswallsmith/assetic/src/Assetic/Util/PathUtils.php b/core/vendor/kriswallsmith/assetic/src/Assetic/Util/PathUtils.php
index 8fda83b..91d1f44 100644
--- a/core/vendor/kriswallsmith/assetic/src/Assetic/Util/PathUtils.php
+++ b/core/vendor/kriswallsmith/assetic/src/Assetic/Util/PathUtils.php
@@ -9,10 +9,10 @@
  */
 abstract class PathUtils
 {
-    public static function resolvePath($path, array $vars, array $values)
+    public static function resolvePath($path, array $variables, array $values)
     {
         $map = array();
-        foreach ($vars as $var) {
+        foreach ($variables as $var) {
             if (false === strpos($path, '{'.$var.'}')) {
                 continue;
             }
diff --git a/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/Asset/AssetCollectionTest.php b/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/Asset/AssetCollectionTest.php
index 3995ee1..88019ad 100644
--- a/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/Asset/AssetCollectionTest.php
+++ b/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/Asset/AssetCollectionTest.php
@@ -168,10 +168,10 @@ public function testGetLastModified($timestamps, $expected)
 
     public function testGetLastModifiedWithValues()
     {
-        $vars = array('locale');
-        $asset = new FileAsset(__DIR__.'/../Fixture/messages.{locale}.js', array(), null, null, $vars);
+        $variables = array('locale');
+        $asset = new FileAsset(__DIR__.'/../Fixture/messages.{locale}.js', array(), null, null, $variables);
 
-        $coll = new AssetCollection(array($asset), array(), null, $vars);
+        $coll = new AssetCollection(array($asset), array(), null, $variables);
         $coll->setValues(array('locale' => 'en'));
         try {
             $coll->getLastModified();
diff --git a/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/AssetWriterTest.php b/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/AssetWriterTest.php
index 97cf2c1..9c81dad 100644
--- a/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/AssetWriterTest.php
+++ b/core/vendor/kriswallsmith/assetic/tests/Assetic/Test/AssetWriterTest.php
@@ -133,12 +133,12 @@ public function testAssetWithInputVars()
     /**
      * @dataProvider getCombinationTests
      */
-    public function testGetCombinations($vars, $expectedCombinations)
+    public function testGetCombinations($variables, $expectedCombinations)
     {
         $ref = new \ReflectionMethod($this->writer, 'getCombinations');
         $ref->setAccessible(true);
 
-        $this->assertEquals($expectedCombinations, $ref->invoke($this->writer, $vars));
+        $this->assertEquals($expectedCombinations, $ref->invoke($this->writer, $variables));
     }
 
     public function getCombinationTests()
diff --git a/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php b/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
index dc17ffb..f84ebff 100644
--- a/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
+++ b/core/vendor/symfony/routing/Symfony/Component/Routing/Matcher/Dumper/PhpMatcherDumper.php
@@ -296,17 +296,17 @@ private function compileRoute(Route $route, $name, $supportsRedirections, $paren
 
         // optimize parameters array
         if ($matches || $hostMatches) {
-            $vars = array();
+            $variables = array();
             if ($hostMatches) {
-                $vars[] = '$hostMatches';
+                $variables[] = '$hostMatches';
             }
             if ($matches) {
-                $vars[] = '$matches';
+                $variables[] = '$matches';
             }
-            $vars[] = "array('_route' => '$name')";
+            $variables[] = "array('_route' => '$name')";
 
             $code .= sprintf("            return \$this->mergeDefaults(array_replace(%s), %s);\n"
-                , implode(', ', $vars), str_replace("\n", '', var_export($route->getDefaults(), true)));
+                , implode(', ', $variables), str_replace("\n", '', var_export($route->getDefaults(), true)));
 
         } elseif ($route->getDefaults()) {
             $code .= sprintf("            return %s;\n", str_replace("\n", '', var_export(array_replace($route->getDefaults(), array('_route' => $name)), true)));
diff --git a/core/vendor/twig/twig/lib/Twig/Extension/Debug.php b/core/vendor/twig/twig/lib/Twig/Extension/Debug.php
index 97007fb..b5e88c9 100644
--- a/core/vendor/twig/twig/lib/Twig/Extension/Debug.php
+++ b/core/vendor/twig/twig/lib/Twig/Extension/Debug.php
@@ -52,14 +52,14 @@ function twig_var_dump(Twig_Environment $env, $context)
 
     $count = func_num_args();
     if (2 === $count) {
-        $vars = array();
+        $variables = array();
         foreach ($context as $key => $value) {
             if (!$value instanceof Twig_Template) {
-                $vars[$key] = $value;
+                $variables[$key] = $value;
             }
         }
 
-        var_dump($vars);
+        var_dump($variables);
     } else {
         for ($i = 2; $i < $count; $i++) {
             var_dump(func_get_arg($i));
diff --git a/core/vendor/twig/twig/lib/Twig/Parser.php b/core/vendor/twig/twig/lib/Twig/Parser.php
index 1179913..8161441 100644
--- a/core/vendor/twig/twig/lib/Twig/Parser.php
+++ b/core/vendor/twig/twig/lib/Twig/Parser.php
@@ -68,9 +68,9 @@ public function getFilename()
     public function parse(Twig_TokenStream $stream, $test = null, $dropNeedle = false)
     {
         // push all variables into the stack to keep the current state of the parser
-        $vars = get_object_vars($this);
-        unset($vars['stack'], $vars['env'], $vars['handlers'], $vars['visitors'], $vars['expressionParser']);
-        $this->stack[] = $vars;
+        $variables = get_object_vars($this);
+        unset($variables['stack'], $variables['env'], $variables['handlers'], $variables['visitors'], $variables['expressionParser']);
+        $this->stack[] = $variables;
 
         // tag handlers
         if (null === $this->handlers) {
diff --git a/core/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php b/core/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
index 3b7da6e..91c0556 100644
--- a/core/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
+++ b/core/vendor/twig/twig/test/Twig/Tests/Node/IncludeTest.php
@@ -23,9 +23,9 @@ public function testConstructor()
         $this->assertEquals($expr, $node->getNode('expr'));
         $this->assertFalse($node->getAttribute('only'));
 
-        $vars = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
-        $node = new Twig_Node_Include($expr, $vars, true, false, 1);
-        $this->assertEquals($vars, $node->getNode('variables'));
+        $variables = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
+        $node = new Twig_Node_Include($expr, $variables, true, false, 1);
+        $this->assertEquals($variables, $node->getNode('variables'));
         $this->assertTrue($node->getAttribute('only'));
     }
 
@@ -65,22 +65,22 @@ public function getTests()
         );
 
         $expr = new Twig_Node_Expression_Constant('foo.twig', 1);
-        $vars = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
-        $node = new Twig_Node_Include($expr, $vars, false, false, 1);
+        $variables = new Twig_Node_Expression_Array(array(new Twig_Node_Expression_Constant('foo', 1), new Twig_Node_Expression_Constant(true, 1)), 1);
+        $node = new Twig_Node_Include($expr, $variables, false, false, 1);
         $tests[] = array($node, <<<EOF
 // line 1
 \$this->env->loadTemplate("foo.twig")->display(array_merge(\$context, array("foo" => true)));
 EOF
         );
 
-        $node = new Twig_Node_Include($expr, $vars, true, false, 1);
+        $node = new Twig_Node_Include($expr, $variables, true, false, 1);
         $tests[] = array($node, <<<EOF
 // line 1
 \$this->env->loadTemplate("foo.twig")->display(array("foo" => true));
 EOF
         );
 
-        $node = new Twig_Node_Include($expr, $vars, true, true, 1);
+        $node = new Twig_Node_Include($expr, $variables, true, true, 1);
         $tests[] = array($node, <<<EOF
 // line 1
 try {
