Correct readme and added 1.0 migration instructions
"Next" callback changes

Every route has a "next" callback. In request there is a new parameter
"request.hasNext" which assert the existence of an other matching route.
You can call next even if there is no other matching route passing an
error as parameter.

Conflicts:
	router.js
	router.min.js.map
Improved readme and documentation
Corrected API documentation