Scald implementation of hook_i18n_string_info() is wrong

https://www.drupal.org/node/2291875 fixed the translation of the Scald types but there was an error in the code (and I'm ashamed to admit that I also reviewed it), namely in the implementation of hook_i18n_string_info():

+/**
+ * Implements hook_i18n_string_info().
+ */
+function scald_18n_string_info() {
+  $groups['scald_type'] = array(
+    'title' => t('Scald atom type'),
+    'description' => t('The title and description of the different atom types supported by Scald.'),
+    'format' => FALSE,
+    'list' => TRUE,
+  );
+
+  return $groups;
+}

See it? Probably not. The function name is scald_18n_string_info and "i" is missing before "18". I discovered this when I called i18n_string_group_info('scald') and I got nothing. Investigating further I saw that in i18n_string_group_info that hook_i18n_string_info() is invoked and I found the problem. Fixing the function name is not all however. Looking further I saw that scald_i18n_string_info() returns group called 'scald_type', while above, in scald_locale() the group is declared as 'scald'. I'll provide a patch for this.