Remove AudioVision files [ci skip]
Update audio vision API fixtures, specs
Add audio_vision gem
Remove audio vision loading and configuration
Merge pull request #169 from SCPR/move-audiovision-client

Move audiovision client
Merge remote-tracking branch 'origin/master' into association-versioning

Conflicts:
	config/environments/test.rb
	lib/audio_vision/asset.rb
	lib/audio_vision/base.rb
	lib/audio_vision/billboard.rb
	lib/audio_vision/bucket.rb
	lib/audio_vision/client.rb
	lib/audio_vision/post.rb