Fixed the oscilloscopes and spectrum displays from not updating when returning from the Instrument Summary screen.

Updated the example song with a more interesting and complex instrument.

1. Implemented an audio limiter for hearing protection (can be disabled at user's discretion).

2. Added 808 cowbell instruments (special user request from Marc)

3. Online community forum is now available at https://oscalate.com/community

4. Added new paid tier (Flex) and demo songs for the Discovery (free) version of the app.

5. Fixed damping in reverb (was not functional).

6. Fixed bug in note volume envelopes where the envelopes were not being copied to the edit buffer (or to other tracks or blocks).

7. Fixed increment and decrement of percentages on slider control buttons.

8. Improved organization and appearance of the settings menu.