compile litcoffee to js

Compile Literate CoffeeScript to JavaScript, which will also remove all
the Markdown content
Merge branch 'jordanbtucker-litcoffee-as-js'
See #18. Add example Literate CoffeeScript file.
Add Gitter badge.
Prepare 0.1.1 release
Add ActivationEvents to improve startup performance.

See #19. May also help by making package load later when everything is
initialized and ready.
Prepare 0.1.2 release
Update README with Language support.
Closes #16. Allow optional supported extensions for renderers.
Closes #12. Add Dogescript support.
Prepare 0.2.0 release
Closes #5. Add TypeScript support.
Prepare 0.3.0 release
See #5. Add TypeScript support to README.
Prepare 0.3.1 release
Closes #21. Add Stylus support.
Prepare 0.4.0 release
Closes #10. Add Analytics to track which languages are most used.
Prepare 0.5.0 release
See #10. Improve quality of messages sent for Google Analytics.