remove duplicate undefined check
Merge branch 'pepf-master'
fix undefined error
fix #34 by only looking at the videoId, but now you can't play the same song twice...
add a playlist play/pause button
add follow button logic
add follow db logic
add a following list in each playlist
Merge pull request #35 from Rayman/playlist-following

Add playlist following/unfollowing
All kinds of small things (and sheep on the front page)