use ustream rtmp instead of WebKit (depends on ustream URL service)
Merge pull request #3 from mmccurdy07/master

remove WebKit dependency
Add try/except around live stream item to prevent the TWiT plugin from loading if the live stream/Ustream service fails.
Fix live stream url
Return EpisodeObjects to match URL service.
Use the Ustream HLS stream for live stream.
Updated icon
Add option to select HLS provider.
Use hosted resources
Skip over problematic videos.
Add video resolution for live stream, fixes #5
Exclude live stream from clients that can't handle the stream.
include PHT in list of HLS compatible clients