Removed support for streaming using "HTTP Live Streaming" (HLS).
This was always a hack; it is better to use a dedicated HTTP server to serve HLS segments,
rather than trying to implement a HTTP server (serving 'virtual HLS segments) within
our own (primarily RTSP) server.
If you are looking for HLS support, note that we provide a source-code demo application
"testH264VideoToHLSSegments" that converts
a (static) H.264 Elementary Stream file to HLS segments, and the "LIVE555 HLS Proxy", which proxies a live RTSP/RTP stream to HLS segments.