Fixed emails so charities with no donations are hidden
Fix failed sign up
Initial commit of A/B Testing

Tracking code added to all applicable places and linked (hopefully
correctly)

Added new items to “About We” page for Bruno and Me

Added new email layout for emails after purchase
(Images need to be on a static server somewhere though)
Added the A/B testing code to the header incorrectly

Please please /pleaseeee/ work correctly.
mailer tweaks
erge branch 'master' of https://github.com/FoodCircles/food_circles
Fixed mobile access for non-root pages