Set up Action Mailer to use Mandrill on both production and development.
Use dalli so production machine doesn't have a panic attack.
Don't bother with sending mails unless Mandrill variables are set up.
Merge pull request #91 from sarahsemark/mail-setup

Configure basic mail delivery
Move initial mobile styles into existing stylesheet.
Nix columns at phone sizes.
Use a viewport tag, please!
On phones, simplify forms.
Use smarter/saner breakpoints and always create a small margin.
Improve header spacing on smaller screens.
Ensure that content is still centred on larger screens.
Clean up dashboard and add new interview form on phones.
Set up a super barebones mobile menu using mmenu.
Set up multiple mobile menus; clean up structure.
Pretty up menus on mobile.
Add Dalli gem for memcaching.
Clean up signup, login, and intro pages for mobiles.
Testing for deploy
Pretty up launch page on phones.
Prettify launch page for tablets.