[#32146] com_ajax: improvement, use controllers (new MVC), better error handling

[Fedik]

changes:

• format parameter now is required
• own Exception handler that should fix previous problem with handling errors when "ajax" call,
• own function for check "whether module available"
• added content and system plugin groups

Links:

• old pull [#32146] com_ajax: improvement, use controllers, better error handling #2107
• Joomla! tracker [#32146] com_ajax: improvement, use controllers, better error handling

[brianteeman]

Thank you for your contribution and participation in the bug tracking process. As there has been no response to the request for testing information I am closing this report at this time.

We have now moved our bug tracking process to http://issues.joomla.org/ so if you have further information that would enable this issue to be reopened please update the issue at http://issues.joomla.org/tracker/joomla-cms/3071 and it can be reopened.