Changed how determening if is administrator; pervious was was only for MU. refs #552

@@ -48,7 +48,7 @@ class PagePermissions {
         }
 
         // Anyone has access, God has no limitations
-        if ($data[self::ELE_SEL] == self::OPT_ALL || is_site_admin()) {
+        if ($data[self::ELE_SEL] == self::OPT_ALL || self::is_admin()) {
             return true;
         }
 
@@ -99,6 +99,10 @@ class PagePermissions {
         return $user_role;
     }
 
+    public static function is_admin($user = false) {
+        return (self::get_user_role($user) == 'administrator' ? true : false);
+    }
+
     public static function getFieldNames() {
         static $fields = false;
         if (false !== $fields) {