Implement global settings

application/config/autoload.php

@@ -109,7 +109,7 @@ $autoload['language'] = array();
 |
 */
 
-$autoload['model'] = array('user', 'project', 'share');
+$autoload['model'] = array('user', 'project', 'share', 'setting');
 
 
 /* End of file autoload.php */

application/config/form_validation.php

@@ -84,6 +84,24 @@ $config['auth/settings'] = array(
 		),
 );
 
+/**
+ * Rules for global settingsa.
+ *
+ * @var array
+ */
+$config['settings/index'] = array(
+		array(
+				'field' => 'offline',
+				'label' => _('Offline mode'),
+				'rules' => 'required|integer',
+		),
+		array(
+				'field' => 'offline_message',
+				'label' => _('Offline message'),
+				'rules' => 'trim',
+		),
+);
+
 /**
  * Rules for creating users.
  *