Embed full file path in results

In order for ember-cli's livereload to know the full file path
broccoli-sane-watcher needs to pass back that filePath in the results
hash. sane-0.6.0 has been updated to provide the root of the file path.
Merge pull request #10 from bcardarella/bc-embed-full-file-path-in-results

Embed full file path in results