Reference and build from tildeio/route-recognizer and remove amd

Similar to #5216, this PR removes the route-recognizer AMD and instead uses bower to pull in the es6 files then in the Brocfile put them into the pipeline to be finalized.

_This should make it considerably easier to upgrade rsvp as well as play into future plans for using the bundled output for the es6 module transpiler (by having all inputs in es6). [discussed with @rwjblue]_

This was made considerably easier by https://github.com/tildeio/route-recognizer/pull/31 which brocclified the build of route-recognizer.  With that in mind I've locked the `bower.json` for route-recognizer to that commit.