Merge branch 'master' of github.com:WoltLab/WCF
Fixed check for checkbox attribute "checked"
Added user ban function
Merge branch 'master' of github.com:WoltLab/WCF
Small optimizations
I18nHandler now provides reset()

disableAssignValueVariables() and enableAssignValueVariables() have been removed in favor of reset().
Improved DatePicker with time support
Lower cases

I've fixed the correct spelling, namely lower cases in line 720-724.

However, I'm not sure whether I had to correct the spelling in line 727 and 728 as well. The articels "A/An" are given in quotes, maybe thus, it should be left like that or...?
Use correct three letter abbreviation for “März”
Small optimization
Merge branch 'master' of github.com:WoltLab/WCF
Improves feedback when executing cronjobs in the ACP
Overhauls category implementation

Closes #1222
Removed manual update button on package list
Removed manual update button on package list
Updated setup style
Merge branch 'master' of github.com:WoltLab/WCF
Fixed issues in page menu administration
Added missing permission
Suppressed warning for missing php timezone setting