Make trigger ports configurable as either drum trigger or clock divider.

Update screenshot.

Optimize BOM table a bit.

Add more documentation and the BOM.

Enlarge transpose range.

Documentation updates

Remove unused code.

Add some build notes.

Update docs for webconfig.

Start on webconfig.

Fix caps silkscreen + powerconnector.

Small formatting updates.

Add a table of programmable addresses.

Add dual channel arpeggiator and keyboard split mode.

Add better configurable clock divider, add arp speed via midi + config test.