Minor fixes.

Minor fixes.

A minute change to comply with Apple's App Store requirements.

Dynamics!

Design dynamic patterns for each of the instruments.

A few minor cosmetic changes.

NEW FEATURES:
- Swing is here. Add swing to your beat and make it groove!
- Replaced instrument sounds with better instrument sounds.

FIXES:
- Fixed an issue where MIDI notes got stuck when disabling MIDI Out.

- New Displacement function to add silences before a pattern begins.
- Tempo range is now from 30 to 180 bpm.

Background audio and MIDI. Now Orooga will continue to produce sound and send MIDI out while it is in the background.

Added a quick help menu.