added alternate rtmp naming
Merge pull request #687 from shopgirl284/spikefix

Added alternate rtmp naming
PokerTube - Use different HTML element to find video id
Uitzending Gemist - Update stream URL
Pitchfork TV - All videos hosted on YouTube now
Trailer Addict - Update after site changes
YouTube - Update sig83 and 85
Uitzending Gemist - Add support for npo.nl
Channel9 - Add support for '/Events/' URLs.
updated HGTV URL Service
Merge remote-tracking branch 'upstream/master'
Merge pull request #690 from Gerk/hgtv

updated HGTV URL Service
Apple Movie Trailers - Apple is now using https for their trailer website.
Anna Kim Photography - New URL Service
updated PBS URL service
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into pbs
Merge pull request #692 from Gerk/pbs

PBS URL Service fix
TVLand - Catch HTTP errors
MTV - If the title element is not in the XML file, the video is not or no longer available.