Get tracks on album find
Merge pull request #1 from mitchellhenke/master

Find by id
small fix on README
Merge branch 'album-tracks' of github.com:mitchellhenke/rspotify
removing @name from Base object
adding User
updating README
updating version
correcting version number
breaking long line
updating README
adding url for access token
sorting autoload dependencies
adding authentication
adding authenticated REST methods
adding Playlist class
implementing Playlist#find
implementing User#playlists
missing require in README
updating README with authentication and playlists