Update consent form links

Rob asked if we could turn the consent form choices into links. This does that.
Also removes the extension uninstall delay since it wasn't useful anyway.

![screen shot 2014-10-19 at 8 50 33 am](https://cloud.githubusercontent.com/assets/4962198/4693745/6c87dcc4-57aa-11e4-84f6-c30c4a633b51.png)

(Part of Issue #7)