Use newer version of VLCKit
Remove code to add event playlist type header for HLS.

VLCKit should add it for us, now.
Remove m_ prefix from properties.
Don't transcode audio for now, and begin playback ASAP if using HLS.
Use latest available VLCKit commit
Update CocoaHTTPServer
Set as airplaying after sending a /play request, without waiting for a response.