first pass at lastfm authing and scrobbling
typo fix and remove unused property in Playlist js Object
some error handling cleanup and send duration when setting a users nowplaying param on lastfm
revert id on a button
added a section on the front page when a user is logged in to promote the scrobbling feature
small tweak to the about dialog and update the signup page with a little last.fm scrobble upsell
combine top genres and all generes tabs into one
Merge pull request #54 from cjstewart88/lastfm-scrobbling

first pass at lastfm authing and scrobbling