Added the original Last.fm API for scrobbling

Basically just put the Last.fm scrobbler back into the app (didn't touch anything besides doing this). Might want to change the API key in Config.java if you don't want to have it classed as the original Apollo app, up to you. 

![screenshot_2013-05-18-22-30-42](https://f.cloud.github.com/assets/752001/522180/4f586e20-c002-11e2-8554-8e3bd36ac48b.png)