Squashed commit of the following:

commit 8a03b30dd8acd068cfddce70bd5e383dcda197fd
Author: Robert Guthrie <rob@guthr.ie>
Date:   Sat Sep 13 19:22:10 2014 +1200

    add text to footer

commit 09a13c765c43d189fb0d9beb3c6d078a847bcb3b
Author: Robert Guthrie <rob@guthr.ie>
Date:   Sat Sep 13 19:00:25 2014 +1200

    implement unfollow discussion from email and clean up email actions into a controller of their own

commit 1fe17c866f543be98512299ffbf36475aa2e8b26
Author: Robert Guthrie <rob@guthr.ie>
Date:   Fri Sep 12 17:19:35 2014 +1200

    first steps, sorting out routes for email actions
Merge pull request #1679 from loomio/email-actions

Unfollow from email