Added styling for a.icon:hover
Several bugfixes (adapt to upstream changes)
Reader may not always be initialized
Check for DatabaseCommandHistory as well
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
Merge branch 'master' of github.com:WoltLab/WCF into css/a.icon
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