v1.1 - Pattern Randomizer

It's RP-8's first post-release update! The big change here is a pattern randomizer: click the question mark buttons for instant inspiration! Or more likely a mess, but try your luck. There's a configuration menu accessible via the ` hotkey, and more details are available in the manual.

What's new:

• [added] Pattern randomizer!
• [added] Right click the drum pattern paste button to paste to the selected track only.
• [added] Use b to copy the first step of the current loop (only), n to copy the last step (only). Copying the last step is good for extending loop sections with lots of automation, since you can then use that value to insert/fill a new loop.
• [changed] The "jump to banks" hotkey has been moved to g.
• [fixed] Assorted bugfixes (to both code and docs).