Icecast 2.3.1

Icecast is a streaming media server which currently supports Ogg Vorbis and MP3 audio streams.
Icecast can be used to create an Internet radio station or a privately running jukebox and many things in between.
It is very versatile in that new formats can be added relatively easily, and it supports open standards for communication and interaction.
Enhancements:
New features:
- new tag < logsize > in < logging > state the trigger size (in KB) for cycling the log files.
- new tag < logarchive > in < logging > enable (1) if you want to use a timestamp for an extension when cycling logs.
Fixes:
- Handling of certain shoutcast source clients is fixed, this typically affected NSV source clients
- A race in source shutdown when listeners are authenticated could lead to server crash
- An audio glitch was possible in playback of vorbis streams when a new logical stream started (eg metadata update).
- stats speedup. Processing large numbers of stats was slow. Typically only seen when using lots of streams on the same server.
- 404 responses were being sent back in some places, now 403 is sent back.
- Auth URL now handles the authentication to scripts better.
- The order in which username/password are selected is
- 1. url is http://user:pass@host:port/....
- 2. < param name="username" > and < param name="password" >
- 3. with listener_add/remove, listener supplied username/password is used.
- A streams intro file can now be changed, using HUP, on active streams.
- mount without a name crashed the server
- Various documentation updates