- AJAX requests now also respond with a small message at the bottom of the page, notifying the user of the result
- The following actions work now on the event page via ajax:
1. Add / remove tags
2. quick edit any attribute field if eligible
3. quickly create a proposal of any attribute field if not eligible to edit
4. popover attribute creation (also works with batch add)
5. popover proposal creation (also works with batch add)
6. delete attributes
7. accept/discard proposals
8. mass edit / delete attributes
Also, replaced the old memberslist, with a small lightweight css/js based one.