Merge remote-tracking branch 'upstream/master' into js/modalDialog
Enabled disclaimer for logged in users

See
http://beta.woltlab.com/index.php/Thread/1191-Nutzungsbestimmungen-Disclaimer/
Merge branch 'js/modalDialog'
Merge branch 'master' of github.com:WoltLab/WCF
Merge branch 'master' of github.com:WoltLab/WCF
Merge branch 'master' of github.com:WoltLab/WCF
Merge branch 'master' of github.com:WoltLab/WCF
Shows an inline spinner when searching
Update UserBulkProcessingForm.class.php

access for eventlistener
Allow icons to be framed

Since icons are images too it should be possible to use them with the `.framed` class.
added support for additional data in data exporter
Improved categoryAdd template
Added FileReader class
Improved visuals for failed/paused installation
Merge branch 'master' of github.com:WoltLab/WCF
Adds recalculation of dropdown position each time

This avoids multiple issues like when an inserted/removed node changes the height of the page.
Merge branch 'master' of github.com:WoltLab/WCF
Updating minified JavaScript files
Mobile optimizations
Merge branch 'master' of github.com:WoltLab/WCF