Adding RegExp support for routes, map, etc. Updating examples and tests to reflect.
Updating README to reflect new routing.
Removing sorting from router keys now that we're using regular expressions. Updating tests.
Extracting router into regexp_router.js
Changing router interface to accept an array of methods.
Adding create function to router for instantiating a new version on embedded servers.
Fixing bug with env.request.url. Argo no longer modifies it.
Adding Argo URI helper and adding buffer support to response ender.
Merging in URL patterns branch.