Add t() function to commons_search_core_facetapi_default_facet_settings()

In the file "profiles/commons/modules/contrib/commons_search/modules/commons_search_core/commons_search_core.facetapi_defaults.inc", add t() function :

line 155 : 'value' => 'None available.', --> 'value' => t('None available.'),
line 158 : 'submit_realm' => 'Save and go back to realm settings', --> 'submit_realm' => t('Save and go back to realm settings'),

line 197 : 'value' => 'No options available', --> 'value' => t('No options available'),
line 200 : 'submit_realm' => 'Save and go back to realm settings', --> 'submit_realm' => t('Save and go back to realm settings'),

line 242 : 'submit_realm' => 'Save and go back to realm settings', --> 'submit_realm' => t('Save and go back to realm settings'),

line 281 : 'value' => 'None available.', --> 'value' => t('None available.'),
line 284 : 'submit_realm' => 'Save and go back to realm settings', --> 'submit_realm' => t('Save and go back to realm settings'),

line 323 : 'value' => 'No options available', --> 'value' => t('No options available'),
line 326 : 'submit_realm' => 'Save and go back to realm settings', --> 'submit_realm' => t('Save and go back to realm settings'),