Better variable naming convention

includes/admin.form.inc

@@ -48,20 +48,20 @@ function islandora_repository_admin(array $form, array &$form_state) {
             ),
           ),
         ),
-        'sparql_endpoint_externalized' => array(
+        'islandora_sparql_endpoint_externalized' => array(
           '#type' => 'checkbox',
           '#title' => t('Use an external SPARQL Query endpoint'),
           '#description' => t('If an external query endpoint is used, the repository must be configured to update it.'),
-          '#default_value' => variable_get('sparql_endpoint_externalized', FALSE),
+          '#default_value' => variable_get('islandora_sparql_endpoint_externalized', FALSE),
         ),
-        'sparql_endpoint' => array(
+        'islandora_sparql_endpoint' => array(
           '#type' => 'textfield',
           '#title' => t('SPARQL Query Endpoint'),
-          '#default_value' => variable_get('sparql_endpoint', ""),
+          '#default_value' => variable_get('islandora_sparql_endpoint', ""),
           '#description' => t("An external SPARQL Query endpoint to use."),
           '#required' => FALSE,
           '#states' => array(
-            'invisible' => array(':input[name="sparql_endpoint_externalized"]' => array('checked' => FALSE))),
+            'invisible' => array(':input[name="islandora_sparql_endpoint_externalized"]' => array('checked' => FALSE))),
         ),
         'islandora_repository_pid' => array(
           '#type' => 'textfield',

includes/tuque.inc

@@ -87,7 +87,7 @@ class IslandoraTuque {
     }
 
     if (!isset($sparql_endpoint)) {
-      $sparql_endpoint = variable_get('sparql_endpoint', $url);
+      $sparql_endpoint = variable_get('islandora_sparql_endpoint', $url);
     }
 
     if (self::exists()) {