add support for instrumenting coffeescript
remove testem dependency from package.json
fix most node test errors
add coffeescript coverage tests
Merge branch 'instrument-coffeescript' of git://github.com/beatport-james-free/istanbul

Conflicts:
	package.json
Add coffeescript support to cover command
Merge https://github.com/gotwarlost/istanbul into instrument-coffeescript

Conflicts:
	test/cli/test-instrument-command.js
Merge pull request #1 from duereg/instrument-coffeescript

Instrument coffeescript