Tvheadend

Most corrections I took from branch 4.3.

Send me list of commits in 4.3 you applied. I won't merge this - I cannot review the patch in this form.

All these patches can not be used, except one - for VLC3 num.6. He partly solved my problems. My patch solves problems with other media players, the rtsp_parse_args() function tries to parse arguments from url, but at this time they are passed in the http header in a place with CSeq, that was not created servers if unless use hc_stream, so the player received a Bad Request...

And one more thing, if you use several working media players on one computer, then after closing or stopping one of them, all the rest also stop playback. I figured out that this is answered by calling rtsp_clean(rs, 1) in rtsp_close_session(), if replace 1 on 0, then this problem disappears.