[mythtv] xmltv stable releases

[Ben Bucksch]

ijr wrote in the cvs log:

>This should fix things with xmltv 0.5.11 and tv_grab_na. 
>Someone needs to have a little talk with the xmltv guys about version numbering and stability of features.  One normally doesn't go changing things that other people depend on in micro version updates.
>
His name is Ed Avis, he listens on the xmltv-dev list and is usually 
quite sensible, so I guess that wasn't intentional. I bet he wil have an 
open ear to you.

Ben