Attempted to fix SRT push & embed links.
Push works, embed needs help
Changed capa to say UDP port as it is binding UDP
added methods to dtsc for output. added webrtc whip as input push url
added url_rel to DTSC
added "/" to the always_match and source_match for SDP and playlist to match with other protocols
updated Playlist to have source/always_match as array.
Noticed "variables_match" which is unused, what to do with it?
fix typo in -h controller text