Added user ban function
Merge branch 'master' of github.com:WoltLab/WCF
Fixed small issue
Fixed forceFrontend parameter
Add optimizations for mobile devices
Removed unused language items
Merge branch 'master' of github.com:WoltLab/WCF
Added fix for pseudo empty variables
Fixed small style issues
Merge branch 'master' of github.com:WoltLab/WCF