1) Fix compile failure with latest CVS
Parameter added to C_Broadcast
2) Fix busy loop on DVB signal loss
Occasionally, if the DVB signal is lost (e.g. unplug cable, or just
tune to an intermittently bad signal), vls enters a busy loop, using
100% CPU. Not good if you're running vls at priority FIFO 1 (machine
lockup). This adds extra sleeps to cope with this.
3) Added support to configure.in for later versions of libdvb
Back-compatable with previous versions.
The configure script itself has not updated by me as I'm probably using a
weird version of autoconf.