Add back repos to GitHub page

This adds back the repos data that was removed from the rewrite.
Reorganize repos on GitHub page, add CLA info
Merge pull request #51 from ericf/github

Add back repos to GitHub page
Rename project to: FormatJS
Make sure nav menu fits on smaller screens with new brand name
Merge pull request #52 from ericf/rename-formatjs

Rename project to: FormatJS
Fix Broccoli build
Update examples infrastructure for React components
Add React formatNumber example
Add React formatDate example
Add React formatMessage example
Use subheadings when rendering parts of examples
Add promise reject handler to React route
Merge pull request #53 from ericf/react-examples

React examples