PVR changes (part 3)

* DialogPVRGuideInfo : button readability
* Includes_PVR :
  1) localization for 'Listing'
  2) changes for PVR recordings viewing
  3) changes for PVR timers viewing
  4) EPG gridview: show channel name when no icon available
* MyPVR : reflect changes above in layout

Changing the timers info screen is not that simple so no changes are included for now.
I think the easiest way will be to do something like DialogPVRGuideInfo and not like the EPG search...

Regards,

   Jan