Fix commit da607337b4268e94864ea73276f9bbde44820d76
Style fix
We need ccorrectly formed button for cucumber tests
Update acceptance test according to previous change

When you modify pages, you should run acceptance and modify accordingly.
Show user collection after add track
Re-instate show user

Redirect to bibliotheque doesn't work when you're not logged in
Put back deleted files from 0306b2be4cfa8e2b972ec8a8db6c0ff96f0e5091
Update test according to previous change
Remove delete action for now
Secure likes as they rely on loggedin user
Try to add a collection based on given user