Front End Work

Lots of work here! Each of the commits in this Pull Request has information about what was done. The tl;dr is that we made lots of UI changes for the better. This has been tested in latest versions of Chrome, Firefox, Safari on Mac and it works in Internet Explorer versions 10+. 

Lower versions of IE will need some extra help, but they account for <10% of users so I think this should get us going for MVP. 

Please pull this down and make sure I didn't catastrophically break any Rails bits, but I think not.

Cheers!
In the next Pull Request I'll probably have to change these pseudo selectors (`input:required`), <IE9 doesn't know what to do with them.