First commit
Rewrite '*.next.js' path to '*.now.js' to distiguish compiled vs originals.
Add an `oldPath` variable and fix a syntax error
Use preferred error handling from Traceur docs

As per https://github.com/google/traceur-compiler/wiki/CompilingOffline#nodejs-api
Update Traceur to v0.0.42
Fork project to meteor-es6