TuneUp Version 43

Fixes:
- Repeat Playlist in the main Tab order now responds to both Enter and Spacebar.
- Volume in the Tab order also responds to Enter or Spacebar by announcing its
  current percentage and the Alt+Up/Down adjustment command.
- TuneUp no longer interrupts JAWS speech for every physical keypress.
  Unassigned keys pass through normally.
- Speech interruption now occurs when TuneUp actually handles a recognized
  command, reducing the chance of delayed/bunched JAWS key-echo announcements.
- All Version 42 E-menu behavior is retained.
