bin/setup for getting project up and running

Borrowed from Suspenders bin/setup
Tweak HTML head and meta info
Remove Museo and Font Awesome
Add Normalize
Base style and layout structure

- Restructure application layout HTML
- Adds landmark ARIA roles to application layout HTML
Document requirements and setup in README.
Bump ruby version.
Fix incorrect spec.
Add deploy script.
Add phantomjs to setup script.