Added a helper script to just dump the json data for a soundcloud track url
Simplify mixes methods by removing the ability to do multiple genres and downloadable filtering (neither were used).
Soundclouds search api no longer seems to allow searching without an explicit query, this breaks how we currently fetch tracks.
Temporarily stop refreshing tracks until another solution can be found.
Added yet another blacklisted user.
Change Soundcloud searching to only search without a genre. Tracks are then split up by genre/tags.
Merge branch 'jmk_simplify_dev'

Conflicts:
	bin/refresh_tracks.rb
Return a sane default if no mixes were found in memcache
Added GA event tracking to the player for play/playing/finished events.
Updated available genres to include drum and bass and trap.