revert csrf on login page. csrf needs to be off in order for zmNinja to work

web/index.php

@@ -177,7 +177,7 @@ isset($view) || $view = NULL;
 isset($request) || $request = NULL;
 isset($action) || $action = NULL;
 
-if ( ZM_ENABLE_CSRF_MAGIC ) {
+if ( ZM_ENABLE_CSRF_MAGIC && $action != 'login' ) {
     Logger::Debug("Calling csrf_check with the following values: \$request = \"$request\", \$view = \"$view\", \$action = \"$action\"");
     csrf_check();
 }