Added iphone playlist and track add functionality
removed thread for adding new listings
Adding thread to auto generating listings
added path to playlist index json
Added pusher
added pusher for voting and removing
updates to pusher
remove links in navigation bar
update echo to include upto 5 artist in recommendation
Add username search on playlists#index
remove window close js handler
add Pusher update for listing added from ios app
add API and playlist_controller for api
add listings controller for api