Added GetJSONResponse function in ContentManager for handling module response data with ajax actions. Edit stylesheet and edit template actions now properly show a response message when saving data through ajax (with "Apply" button) so a user/editor has an idea of what is actually happening. "AJAX GOOD" is not a proper response, especially when user can not see it without viewing response header in Developer Tools and still it doesn't provide us with proper status, like was it a error or success, is our work saved or not.