Bump React App to 0.11.2

## Bump React App to 0.11.2

### Acceptance Criteria
1. React is bumped to `0.11.2` in package.json.

### Additional Notes
- This fixes a conflict with `reactify`, which compiles the JSX into JavaScript. Our version of reactify depends on `React >= 0.11.0`. v0.11.2 had a [major change in the API](http://facebook.github.io/react/blog/2014/09/16/react-v0.11.2.html).