[WIP] use admin extensions instead of custom code in admin
Merge remote-tracking branch 'origin/master' into admin-extensions

Conflicts:
	Resources/translations/CmfContentBundle.de.yml
	Resources/translations/CmfContentBundle.en.yml
	Resources/translations/CmfContentBundle.fr.yml
adjust static content to new admin extensions
Merge remote-tracking branch 'origin/master' into admin-extensions

Conflicts:
	Admin/StaticContentAdmin.php
adjusted to new interfaces
rename menus to menuNodes to make the admin extension happy
Merge pull request #56 from symfony-cmf/admin-extensions

Admin extensions