`this` backward compatibility of resolve function

[redhead]

In 0.2.x the resolve function is called with this pointing to the state it is transitioning to. In 1.0.0 alpha there is nothing. I don't know if this was intentional BC break because of new transition system, but I rather reported it for you to consider.

[nateabele]

Added to the BC list, thanks for the report.

[christopherthielen]

I've been tossing around the idea of binding this to the path node object

[nateabele]

Yeah, I was trying to think about what would be the most sensible in terms of the API (or nothing). That's an option.