* Removes need to use babel-register
- Adds watch to watch changes when running the test to regenerate
- Tests are now pure node 8
* Adds timing to helper.js
* Update contribution guide
* Adds inline sourcemaps generation to restore coverage
* nits
* Update CONTRIBUTING.md
Clean up some of the language in the document.
Add command to run for testing on Windows
* Update CONTRIBUTING.md
Update coverage directory
* Update CONTRIBUTING.md
Add details about how to run test coverage