Fixed flushing of caches with parameters
Date Picker now supports min/max dates and RTL mode

I haven't found a var in the WCF indicating the first day of the week. Maybe you want to add a new language var for this, but it's not that easy: Most countries and ISO 8601 say it's monday (new default), the US says it's sunday (old default). But: UK says monday, too - so it's not really language-specific. Maybe according to the time zone? Do what ever you prefer...
Better code styling
Merge pull request #1131 from MeinAccount/CacheHandler/flushWithParams

Fixed flushing of caches with parameters
Fixed overflows in popovers
Merge branch 'master' of github.com:WoltLab/WCF
Fixed icon-update in WCF.Action.Delete
Removed detection of existing WCF directories

Fixes #1128
Using .hasClass()
Merge branch 'master' of github.com:WoltLab/WCF
Merge pull request #1134 from MeinAccount/js/deleteIconUpdate

Fixed icon-update in WCF.Action.Delete
Adding event-preventing in WCF.Action.Delete/Toggle
Merge pull request #1135 from MeinAccount/js/actionEventPrevent

Adding event-preventing in WCF.Action.Delete/Toggle
Fixed detection of existing WCF installation
Merge branch 'master' of github.com:WoltLab/WCF
Added less variable (@wcfExtraDimmedColor)
Merge branch 'master' of github.com:WoltLab/WCF
Added basic browser detection for Chrome
Removed obsolete folder
Merge branch 'master' of github.com:WoltLab/WCF