changed header on to once
call cleanup method in route change
Merge branch 'develop' of git://github.com/sulu-cmf/SuluAdminBundle into bugfix/js-memory-leak-hunting

Conflicts:
	Resources/public/js/vendor/husky/husky.min.js
built js and uncommented debugger config
solved merge conflicts
built javascript
Merge branch 'bugfix/js-memory-leak-hunting' into develop