TuneUp Version 36

Shortcut simplification:
- [ toggles Shuffle On/Off.
- ] toggles Continuous Play On/Off.
- Shift+[ and Shift+] are no longer assigned to these features.
- Shuffle and Continuous Play remain available in the Tab order.
- When those controls have focus, Enter or Spacebar activates them.
- P remains the global Play/Pause shortcut.
