Updated to match changes with React

- Updated to support the updated API for React (adopting the factory
  pattern), and likewise removing aspects of this compiler that were not
  relevant to coffeescript (such as ECMAScript Harmony support or the
  Pragma header)
- Updated package.json version to match Brunch's plugin specifications
  (following the minor versions).
a little derp and an update to the readme
Merge pull request #1 from jblock/FEATURE-update-react-coffee

Updates to match changes in React API