$cssfiles : array
CSS files to be loaded by the browser.
Copyright 2012-2017 Horde LLC (http://www.horde.org/)
See the enclosed file LICENSE for license information (LGPL). If you did not receive this file, see http://www.horde.org/licenses/lgpl21.
_jsonData() : object
Return a single property, 'reload', which indicates to the HordeCore framework that the page should be immediately reloaded.
The object may include a 'msgs' property, which is an array of notification message objects with 3 properties: flags, message, and type.
The object may include a 'tasks' property, which is an array of keys (task names) / values (task data).
HordeCore JSON object.