Summary:Oops. Looks like I need to run build before publishing.
Closes https://github.com/facebook/draft-js/pull/184

Differential Revision: D3032243

fb-gh-sync-id: e1c3c50df95f186e86c2e14dce96fe83214a4513
shipit-source-id: e1c3c50df95f186e86c2e14dce96fe83214a4513