added a admin tab menue bar
added yield fpr admin tab menue
implemented new admin view with navigation bar and admin tab-navigation bar
Merge remote-tracking branch 'origin/master' into view_refactoring_adrian
added the admin tab navigation to the new information type edit form
moved language selcetion over the admin bar
Merge branch 'master' of github.com:pse3/SGfM into validations
Added some validations to information, info_type_decorator. Redirection
and stuff in controller is on the to do list.