Upgrade to React 0.11.1

The release is backwards compatible with 0.10.0, so no changes are
required to upgrade. 0.11.0 release notes[1] outline the major changes.

[1] https://facebook.github.io/react/blog/2014/07/17/react-v0.11.html
Add new “force=true” option to app destroy in UI

If an app is in the middle of a deployment now, it requires a
“force=true” option to be passed including on DELETE to override the
deployment. To maintain the functionality of the “Destroy” button in the
UI always being able to work, always append “force=true”.