Web\Url: remove forgotten "debug" line
Web\Controller: re-introduce ModuleActionController

This will help getting rid of a couple of if/else constructs
controller->Auth(): one more lazy-loading helper

Not sure about the capital A, but doesn't look so bad - and similar
to Config().
ActionController: __construct() as first function
ActionController: remove addModuleContainer

This method was obsolete
ActionController: remove getRequestUrl

Thie removes complexity and makes redirection to login less error-
prone.
Web\Window: move window handle to dedicated class

One more step in cleaning up our ActionController
Web\Window: fix it's usage, add helper function

Improved window handling, fixed controllers using it.
Web/controllers: use own Request/Response objects

* introduces Icinga\Web\Response
* uses ModuleActionController where necessary
* no module translationDomain voodoo in base ActionController
ActionController: if/else should be easy to read
ActionController: move moduleInit to Module controller
ChartController: use correct ActionController

...and some code cleanup
CSS/menu: remove text shadow from active submenu
Application\Web: use same request everywhere