diff --git a/src/Form/AwsSqsSettingsForm.php b/src/Form/AwsSqsSettingsForm.php
index 600fcd5..e25cd6d 100644
--- a/src/Form/AwsSqsSettingsForm.php
+++ b/src/Form/AwsSqsSettingsForm.php
@@ -12,175 +12,174 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
 
 class AwsSqsSettingsForm extends ConfigFormBase {
 
-    /**
-     *
-     * @var Drupal\Core\Config\ConfigFactoryInterface
-     */
-    protected $config_factory;
-
-    /**
-     * @var Drupal\Core\State\StateInterface
-     */
-    protected $state_interface;
-
-    /**
-     * @var Drupal\Core\Utility\LinkGenerator
-     */
-    protected $link_generator;
-
-    public function __construct(ConfigFactoryInterface $config_factory, StateInterface $state_interface, LinkGenerator $link_generator) {
-        $this->config_factory = $config_factory;
-        $this->state_interface = $state_interface;
-        $this->link_generator = $link_generator;
-        parent::__construct($config_factory);
+  /**
+   *
+   * @var Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $config_factory;
+
+  /**
+   * @var Drupal\Core\State\StateInterface
+   */
+  protected $state_interface;
+
+  /**
+   * @var Drupal\Core\Utility\LinkGenerator
+   */
+  protected $link_generator;
+
+  public function __construct(ConfigFactoryInterface $config_factory, StateInterface $state_interface, LinkGenerator $link_generator) {
+    $this->config_factory = $config_factory;
+    $this->state_interface = $state_interface;
+    $this->link_generator = $link_generator;
+    parent::__construct($config_factory);
+  }
+
+  /**
+   * Factory method for dependency injection container.
+   *
+   * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
+   * @return static
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('config.factory'),
+      $container->get('state'),
+      $container->get('link_generator')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'aws_sqs_settings';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getEditableConfigNames() {
+    return ['aws_sqs.settings'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $default_queue = $this->state_interface->get('queue_default');
+    $config = $this->config('aws_sqs.settings');
+
+    $aws_credentials_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSGettingStartedGuide/AWSCredentials.html');
+    $form['credentials'] = array(
+      '#type' => 'fieldset',
+      '#title' => $this->t('AWS credentials'),
+      '#description' => $this->t('Follow the instructions to set up your AWS credentials @here.',
+        array('@here' => $this->link_generator->generate($this->t('here'), $aws_credentials_url),
+        )));
+    $form['credentials']['aws_sqs_aws_key'] = array(
+      '#type' => 'textfield',
+      '#title' => $this->t('Access Key ID'),
+      '#default_value' => $config->get('aws_sqs_aws_key'),
+      '#required' => TRUE,
+      '#description' => $this->t('Amazon Web Services Key.'),
+    );
+    $form['credentials']['aws_sqs_aws_secret'] = array(
+      '#type' => 'textfield',
+      '#title' => $this->t('Secret Access Key'),
+      '#default_value' => $config->get('aws_sqs_aws_secret'),
+      '#required' => TRUE,
+      '#description' => $this->t('Amazon Web Services Secret Key.'),
+    );
+    $long_polling_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-long-polling.html#sqs-long-polling-query-api');
+    $seconds = range(0, 20);
+    $t_args = array(
+      '@more' => $this->link_generator->generate($this->t('Read more about long polling here.'), $long_polling_url),
+    );
+    $form['aws_sqs_waittimeseconds'] = array(
+      '#type' => 'select',
+      '#title' => $this->t('Wait Time'),
+      '#default_value' => $config->get('aws_sqs_waittimeseconds'),
+      '#options' => $seconds,
+      '#description' => $this->t(
+        "How long do you want to stay connected to AWS waiting for a response (seconds)? If a queue
+    is empty, the connection will stay open for up to 20 seconds. If something arrives in the queue, it is
+    returned as soon as it is received. AWS SQS charges per request. Long connections that stay open waiting for
+    data to arrive are cheaper than polling SQS constantly to check for data. Long polling can also consume more
+    resources on your server (think about the difference between running a task every minute that takes a second
+    to complete versus running a task every minute that stays connected for up to 20 seconds every time waiting for
+    jobs to come in). @more", $t_args),
+    );
+    $visibility_timeout_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/AboutVT.html');
+    $t_args = array(
+      '@more' => $this->link_generator->generate($this->t('Read more about visibility timeouts here.'), $visibility_timeout_url)
+    );
+    $form['aws_sqs_claimtimeout'] = array(
+      '#type' => 'textfield',
+      '#title' => $this->t("Claim Timeout / Visibility Timeout"),
+      '#default_value' => $config->get('aws_sqs_claimtimeout'),
+      '#size' => 15,
+      '#description' => $this->t(
+        "When an item is claimed from the queue by a worker, how long should the item be hidden from
+    other workers (seconds)? Note: If the item is not deleted before the end of this time, it will become visible
+    to other workers and available to be claimed again. Note also: 12 hours (43,200 seconds) is the maximum amount
+    of time for which an item can be claimed. @more", $t_args),
+    );
+
+    $form['aws_sqs_region'] = array(
+      '#type' => 'select',
+      '#title' => $this->t('AWS Queue Region'),
+      '#default_value' => $config->get('aws_sqs_region'),
+      '#options' => array(
+        'us-east-1' => 'us-east-1',
+        'us-west-1' => 'us-west-1',
+        'us-west-2' => 'us-west-2',
+        'eu-west-1' => 'eu-west-1',
+        'ap-southeast-1' => 'ap-southeast-1',
+        'ap-northeast-1' => 'ap-northeast-1',
+        'sa-east-1' => 'sa-east-1',
+      ),
+      '#required' => TRUE,
+      '#description' => $this->t('AWS Region where to store the Queue.'),
+    );
+
+    $form['version'] = array(
+      '#type' => 'textfield',
+      '#title' => $this->t('Version'),
+      '#default_value' => $config->get('aws_sqs_version'),
+      '#required' => TRUE,
+      '#description' => $this->t("Amazon Web Services Version. 'latest' recommended"),
+    );
+
+    if (!$default_queue) {
+      $default_queue = 'queue.database';
     }
 
-    /**
-     * Factory method for dependency injection container.
-     *
-     * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
-     * @return static
-     */
-    public static function create(ContainerInterface $container) {
-        return new static(
-            $container->get('config.factory'),
-            $container->get('state'),
-            $container->get('link_generator')
-        );
-    }
-
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getFormId() {
-        return 'aws_sqs_settings';
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function getEditableConfigNames() {
-        return ['aws_sqs.settings'];
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function buildForm(array $form, FormStateInterface $form_state) {
-        $default_queue = $this->state_interface->get('queue_default');
-        $config = $this->config('aws_sqs.settings');
-
-        $aws_credentials_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSGettingStartedGuide/AWSCredentials.html');
-        $form['credentials'] = array(
-            '#type' => 'fieldset',
-            '#title' => t('AWS credentials'),
-            '#description' => t('Follow the instructions to set up your AWS credentials !here.',
-                array('!here' => $this->link_generator->generate(t('here'), $aws_credentials_url),
-                )));
-        $form['credentials']['aws_sqs_aws_key'] = array(
-            '#type' => 'textfield',
-            '#title' => t('Access Key ID'),
-            '#default_value' => $config->get('aws_sqs_aws_key'),
-            '#required' => TRUE,
-            '#description' => t('Amazon Web Services Key.'),
-        );
-        $form['credentials']['aws_sqs_aws_secret'] = array(
-            '#type' => 'textfield',
-            '#title' => t('Secret Access Key'),
-            '#default_value' => $config->get('aws_sqs_aws_secret'),
-            '#required' => TRUE,
-            '#description' => t('Amazon Web Services Secret Key.'),
-        );
-        $long_polling_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-long-polling.html#sqs-long-polling-query-api');
-        $seconds = range(0, 20);
-        $t_args = array(
-            '!more' => $this->link_generator->generate(t('Read more about long polling here.'), $long_polling_url),
-        );
-        $form['aws_sqs_waittimeseconds'] = array(
-            '#type' => 'select',
-            '#title' => t('Wait Time'),
-            '#default_value' => $config->get('aws_sqs_waittimeseconds'),
-            '#options' => $seconds,
-            '#description' => t(
-                "How long do you want to stay connected to AWS waiting for a response (seconds)? If a queue
-        is empty, the connection will stay open for up to 20 seconds. If something arrives in the queue, it is
-        returned as soon as it is received. AWS SQS charges per request. Long connections that stay open waiting for
-        data to arrive are cheaper than polling SQS constantly to check for data. Long polling can also consume more
-        resources on your server (think about the difference between running a task every minute that takes a second
-        to complete versus running a task every minute that stays connected for up to 20 seconds every time waiting for
-        jobs to come in). !more", $t_args),
-        );
-        $visibility_timeout_url = Url::fromUri('http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/AboutVT.html');
-        $t_args = array(
-            '!more' => $this->link_generator->generate(t('Read more about visibility timeouts here.'), $visibility_timeout_url)
-        );
-        $form['aws_sqs_claimtimeout'] = array(
-            '#type' => 'textfield',
-            '#title' => t("Claim Timeout / Visibility Timeout"),
-            '#default_value' => $config->get('aws_sqs_claimtimeout'),
-            '#size' => 15,
-            '#description' => t(
-                "When an item is claimed from the queue by a worker, how long should the item be hidden from
-        other workers (seconds)? Note: If the item is not deleted before the end of this time, it will become visible
-        to other workers and available to be claimed again. Note also: 12 hours (43,200 seconds) is the maximum amount
-        of time for which an item can be claimed. !more", $t_args),
-        );
-
-        $form['aws_sqs_region'] = array(
-            '#type' => 'select',
-            '#title' => t('AWS Queue Region'),
-            '#default_value' => $config->get('aws_sqs_region'),
-            '#options' => array(
-                'us-east-1' => 'us-east-1',
-                'us-west-1' => 'us-west-1',
-                'us-west-2' => 'us-west-2',
-                'eu-west-1' => 'eu-west-1',
-                'ap-southeast-1' => 'ap-southeast-1',
-                'ap-northeast-1' => 'ap-northeast-1',
-                'sa-east-1' => 'sa-east-1',
-            ),
-            '#required' => TRUE,
-            '#description' => t('AWS Region where to store the Queue.'),
-        );
-
-        $form['version'] = array(
-            '#type' => 'textfield',
-            '#title' => t('Version'),
-            '#default_value' => $config->get('aws_sqs_version'),
-            '#required' => TRUE,
-            '#description' => t("Amazon Web Services Version. 'latest' recommended"),
-        );
-
-        if(!$default_queue) {
-            $default_queue = 'queue.database';
-        }
-
-        $form['queue_default_class'] = array(
-            '#title' => t('Default Queue'),
-            '#markup' => t("The default queue class is <strong>!default_queue</strong>.", array('!default_queue' => $default_queue)),
-        );
-
-        return parent::buildForm($form, $form_state);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function submitForm(array &$form, FormStateInterface $form_state) {
-        $config = $this->config('aws_sqs.settings');
-        $config->set('aws_sqs_aws_key', $form_state->getValue('aws_sqs_aws_key'))
-            ->save();
-        $config->set('aws_sqs_aws_secret', $form_state->getValue('aws_sqs_aws_secret'))
-            ->save();
-        $config->set('aws_sqs_waittimeseconds', $form_state->getValue('aws_sqs_waittimeseconds'))
-            ->save();
-        $config->set('aws_sqs_claimtimeout', $form_state->getValue('aws_sqs_claimtimeout'))
-            ->save();
-        $config->set('aws_sqs_region', $form_state->getValue('aws_sqs_region'))
-            ->save();
-
-        $config->save();
-        parent::submitForm($form, $form_state);
-    }
+    $form['queue_default_class'] = array(
+      '#title' => $this->t('Default Queue'),
+      '#markup' => $this->t("The default queue class is <strong>@default_queue</strong>.", array('@default_queue' => $default_queue)),
+    );
+
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    $config = $this->config('aws_sqs.settings');
+    $config->set('aws_sqs_aws_key', $form_state->getValue('aws_sqs_aws_key'))
+      ->save();
+    $config->set('aws_sqs_aws_secret', $form_state->getValue('aws_sqs_aws_secret'))
+      ->save();
+    $config->set('aws_sqs_waittimeseconds', $form_state->getValue('aws_sqs_waittimeseconds'))
+      ->save();
+    $config->set('aws_sqs_claimtimeout', $form_state->getValue('aws_sqs_claimtimeout'))
+      ->save();
+    $config->set('aws_sqs_region', $form_state->getValue('aws_sqs_region'))
+      ->save();
+
+    $config->save();
+    parent::submitForm($form, $form_state);
+  }
 }
