Fixed ZipWriter getDosDatetime on NaN value
Add Codemirror editor

see http://beta.woltlab.com/index.php/Thread/558-ACE-Editor-im-ACP-einbinden/
Removed initial checks for writable
Fixed variable name
Fixed FileUtil::makeWritable during WCFSetup
Fix ordering of use statements in RegisterActivationForm
Fixed use-statement order
Fixed conversion error of file modes
Merge branch 'master' of github.com:WoltLab/WCF
Fixed file reference for owner check during WCFSetup
Fixed missing filename
Fixed layout issue
Merge branch 'master' of github.com:WoltLab/WCF
Ignoring chmod() errors
Merge branch 'master' of github.com:WoltLab/WCF
Small optimization
Merge branch 'master' of github.com:WoltLab/WCF
Added more performance logging during WCFSetup
Merge branch 'master' of github.com:WoltLab/WCF
Merge branch 'master' into codemirror

Conflicts:
	wcfsetup/install/files/acp/templates/styleAdd.tpl