Restore associated sessions with User objects
Remove all mpd stubs and commented out blocks of code
Add logging on new session generation
Merge pull request #101 from mdlayher/mpd_remove

Remove all mpd stubs and commented out blocks of code
Merge pull request #100 from mdlayher/session_fix

Restore associated sessions with User objects
Merge pull request #99 from mdlayher/master

Add limit and range functionality Song model, API handler