Ambiguity hooking syntax

[StoneCypher]

for the machine

a 'foo' => b;

I need to hook both transition and action, which is gross. I should have the ability to hook anything which both exits a and enters b irrespective of path.

It may be that the default hook should be this, instead of what it is now, and to hook just the path with no action, you should action hook with false, instead. Alternately, hook_bare or something. More thought is required.

Blocks #255

[StoneCypher]

This is now do-able with .hook_transition (or .hook_entry, .hook_exit or a bunch of other stuff)