Small style optimization
Merge branch 'master' of github.com:WoltLab/WCF
Removed AJAX-support for ui.wcfDialog

Additionally WCF.showAJAXDialog() was removed too.
Merge branch 'master' of github.com:WoltLab/WCF
Template listener order is now deterministic

First installed will be the first one to be invoked
Fixes property access because of lazy initialization
Added WCF.LoadingOverlayHandler
Dropped WCF.Action.Proxy._activeRequests
Merge pull request #1132 from MeinAccount/js/loadingOverlayHandler

Added WCF.LoadingOverlayHandler
Improved visuals for dialog overlays
Fixes benchmark dialog