Fix/module usage

[wuzzzzaah]

• Converts jsx to vanilla js so that it compiles with brunch
• Adds node_modules to .gitignore

[rstacruz]

👍

Aside from Brunch users, this is also helpful for Webpack users as well, which doesn't honor package.json's browserify.transform (of course). It's also helpful for Browserify users who may be using babelify instead of reactify :-)