plays first song added to songQueue, does nothing when more than one song is present in the songQueue, removes song from songQueue when song ends.
when a song ends, plays the next song in the songQueue if there are any
passing all SongQueueSpec tests
passing all SongQueueView tests
connected clicking on library to adding to song queue, which plays the song. but additional clicks don't add to the queue
Add a readme (automated commit)