Route Docs - handler and match

[gauntface]

The Route docs don't explain what is passed into callbacks for match and handler.

match function
The function that determines whether the route matches.

handler Object
An Object with a handle method. That method will be used to respond to matching requests.

method string (Optional)
Only match requests that use this HTTP method. Defaults to 'GET' if not specified.

[jeffposnick]

I've got a PR coming up with revised JSDocs. I'll make sure to clarify that.