Node code coverage (98% that's nice!)

Tribute to https://nicolas.perriault.net/code/2013/get-your-frontend-javascript-code-covered/ and https://github.com/alex-seville/blanket/blob/master/docs/getting_started_node.md
Karma tests using browserify :-)
Configuring notifications to avoid bothering everybody
Merge pull request #3 from bbcrd/code-coverage

Code coverage with mocha-blanket