Sample leds, one-shot sample, abletonautostart, resetBeatLeds.

Sample leds: finally implemented, sortof works.
One-shot sample added.
abletonautostart, any buttonpress restarts the loop after reset-press.
resetBeatLeds function to beautify beatleds.
Added sample, removed start. Restructuring

Renamed Ledbit and Ledextra variables.
Removed some testing code.
Added sample button (blue one)
Added delay for stop button (fixes restart-bug?)