Various fixes :

* Player registration is now available again admin and registration side (was completely broken for regular users since tournamentId was made unavailable to the play controller, broke for brand new tournaments when adding players in the admin view)
* E2E tests repaired (some of them still checked for now gone DOM items)

Adds :
* Added scripts to run protractor / webdriver

Deletes :
* TournamentPlay factory has been removed as it is no longer used client-side