CRM-14265 add event custom fields to advanced search … 

Add event custom fields to advanced search  

Note that I haven't included the commit for it but adding address & group is facilitated by this. The problem is that there is no logical place for the group custom data.

This commit adds Group & Address custom data to advanced search - but Group custom data fields sit in the main panes
https://github.com/fuzionnz/civicrm-core/commit/eebebe56be1bcc336304bee93f7288f6d4ad2cda