login button and cookie for anonymous user
to redirect to event after login or registration
Merge branch 'feature/voting_v3' of github.com:songster-project/songster into feature/voting_v3
login button for anonymous users at suggestions
finish event routing in frontend
Merge branch 'feature/voting_v3' of https://github.com/songster-project/songster into feature/voting_v3

Conflicts:
	config/passport.js
fix broadcast load
fix filename of event-service
fix no entries message in event list view
fix event routes
fix authentication cookie
vote and add to queue actions depending on dj or user
creating and saving anonymous user to db at redirect voting
add song to queue - function to get song object from vote
adjust naming
Merge branch 'feature/voting_v3' of https://github.com/songster-project/songster into feature/voting_v3
implemented disabling multiple voting
get uservotes route in backend - returns the voted songs
disabling voting button in frontend - checking uservotes
fixed disabling button in dj view
added ffmpeg and codec for mp3 to provision script and travis
added rest interface for youtube upload
added node dependencies for ytdl and ffmpeg