mythtv revisited

A quick update from mythtv land. It would seem that as of about two weeks ago, my DViCO Dual Digital 4 card is officially supported.

I just pulled the latest drivers out of mercurial and it seems tuning speeds have been much improved since I did my last update somewhere near the start of January.

Small tweak, the driver is now called tuner_xc2028 and not xc3028-fe.