don't require user session to make recent activity stats api calls
move stats menu item from side menu view to home view
change text of 'home' menu item to 'music'
fix user top tracks view; remove some stale comments and method stubs
Fix exception when loading user play history

* also add property for setting whether to autoplay from a stats list
remove more old comments
Merge pull request #36 from alexebird/2.1-stats-fixes

2.1 stats fixes