Thorn polish

With Hippodice drawing near it is time to dust and prune about the edges.

• New rules for ‘Ohana Proa.

• New Player Aid for ‘Ohana Proa.

• New Rules for Muck & Brass

The changes aren’t large. I’ve shortened the end-game in “Ohana Proa a bit, hopefully lopping off 10 minutes or so, and allowed a pass action and end-game qualifier for Muck & Brass. I’m not convinced the latter is necessary but it is at least consistent with the rest of the pattern.