tune again); fixed a filtering bug when the PCR PID changes in a PMT;
 * dvb.c: Implement a new watchdog mechanism (no DVR input => tune again);
   replaced tabs with spaces because it didn't look good in syslog.


git-svn-id: svn://svn.videolan.org/dvblast/trunk@141 55d3f8b6-4a41-4d2d-a900-313d1436a5b8