aborted attempt to improve IsUnsolvable::noclipping_shortcut
Merge branch 'master' into noclipping_shortcut_aborted

Conflicts:
	boards/compare.log
WOW -- noclipping_shortcut works great !?!
it's amazing how big of a difference a tiny change chan make
small tweaks
remove more accessors
Merge branch 'noclipping_shortcut_aborted'