Removed obsolete file
Added events
Added missing clean up
Removed obsolete events
Removed obsolete use
Added ability to suppress errors for an action proxy
Merge branch 'master' of github.com:WoltLab/WCF
Fixed offline mode for AJAX requests
Removed useless method override
Disallow usernames with less than 3 characters

cf. #1144
Disallow usernames with more than 255 characters

SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'username' at row 1
Small style optimization
Added wildcard support for ACL categories

Fixes #1142
Empty object id is now properly handled
Fixed loading of ACLs
Small style optimization
Merge branch 'master' of github.com:WoltLab/WCF
Fixes variable
Included image viewer on every page
Fixed user group cache