* refactoring of live555 module.
- less code duplication - automaticly try HTTP tunneling if describe fails - upon authentication failure, ask for a new user/passwd and try again (untested due to lack of a rtsp source) - fix a bug with adding tracks introduced in  - fix a bug closing the RTSPClient - disabled the QT VoD detection because it's unreliable like hell. TODO: - test with a WMS RTSP session - test against a paswd. protected RTSP session - find a better way for error communication with live (parsing random strings is so 1990) - find a way to relay Control() calls to a subdemux (for time/pos in TS) - add the HREF support of the 0.8.5-href branch - better flushing etc. during the PAUSE (ideas anyone?)