New provider system. Only for people right now
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser
Created ILibraryMonitor to replace IDirectoryWatchers
added api for external apps to report file system changes
fixes #696 - Support delete in web client
fix musicbrainx user agent
fix library monitor reference
fixes #677 - Support back images
persist provider results
case sensitive music brainz search