- Changed name from 'osm' to 'vdr' to avoid mixups with the 'oms' program that
  appears to be in use with DVD replay.
- Implemented a channel display in the top menu line.
- Implemented replay progress display (press "Ok" when replaying to bring it up).
- Implemented direct channel selecting by pressing the numeric keys.
- Added several 'const' keywords to please stricter compilers.
- The repeat function for the remote control no longer adapts dynamically
  to the timing of the RCU (this sometimes caused the repeat function to
  kick in too early).
- Channel selection is now blocked when recording or replaying.
- Improved process handling.