Spotify sdk update, and bug fixes

This PR fixes a few issues:

Updating the gradle plugin to 2.0.0 caused crashes on x64 systems. Now fixed by excluding x64 native binaries (until spotify sdk adds support)
Updating the support library broke selection of rows. I can't seem to find any bugs filed for this so for now I have reverted the support lib version
When navigation to a playlist that is currently playing, the track list is now scrolled to the currently playing track.

sregg / spotify-tv