New version of libraries.
Added Anonymous role. and possibility for users not to log in. Its purpose is to allow users to view some pages and use some functionalities without loggin in. It should not be used in user creation.
Fixed authentication exception mapper and adjusted other mapper messages.
Logged out user is now transported to authentication page.
Fixed test.
Added missing file.
Play controls are now hidden if user is not admin.
Refactored some of playlist-add.js.