Add link to the survey at the bottom of the page

Summary:
![simulator screen shot may 11 2016 3 03 14 pm](https://cloud.githubusercontent.com/assets/197597/15198889/3374abe6-178f-11e6-95e5-378004ea45aa.png)

<img width="1333" alt="screen shot 2016-05-11 at 3 03 25 pm" src="https://cloud.githubusercontent.com/assets/197597/15198886/2e545a8a-178f-11e6-8fd1-975ca700e49b.png">
Closes facebook#7524

Reviewed By: JoelMarcey

Differential Revision: D3293684

Pulled By: vjeux

fbshipit-source-id: c0e7d138040eae49c6b7f7398de8d50f0ed2f564

[0.26.0-rc] Bump version numbers

[0.25.1] Bump version numbers

[0.25.0] Bump version numbers

[0.24.1] Bump version numbers

[0.24.0] Bump version numbers

[0.25.0-rc] Bump version numbers

[0.24.0-rc5] Bump version numbers

[0.24.0-rc4] Bump version numbers

[0.24.0-rc3] Bump version numbers