Autocomplete adjustmends for adding a user to a group by login

Conflicts:
	app/views/application/_footer.html.haml
Admin groups: show tooltips with full text content

Conflicts:
	app/views/application/_footer.html.haml
UI improvements filterset and other adjustments

Conflicts:
	app/views/application/_footer.html.haml
Deploying personas will now use the master (instead of next) branch
Upgrading to rails4 including several reafactorings