* modules/access/http.c,modules/access/mmsh,modules/demux/livedotcom.cpp: Disable...

* modules/access/http.c,modules/access/mmsh,modules/demux/livedotcom.cpp: Disable clock synchro
algorithm for http/mms/rtsp by default for now since our algo was designed for local network
streaming of MPEG over UDP in mind and doesn't work well in other cases.
You can still use the --clock-synchro config option to override this.
Hopefully this commit will be reverted once the clock synchro has been re-written.