[HOLD][#53420683] Updates the "Receive test updates from your group on your mobile device" page.

Awaiting text content review.

![1](https://f.cloud.github.com/assets/2251119/1596796/7af887b6-5302-11e3-92f2-cec7b1047c7f.png)

![2](https://f.cloud.github.com/assets/2251119/1596797/7e234192-5302-11e3-8a27-c3092793f784.png)