Bring Gemfile up to speed.

Add postgres, HAML, Angular, RSpec

: #infrastructure
Add RSpec files to project.

'rails generate rspec:install'

: #infrastructure
Replace static home page with dynamic one.

Switched application to HAML, added root route, and created a
controller for things. Also, now using bootstrap for presentation.

: #ui
Add Devise and Angular to the project.

Had to override the sessions controller in devise so that it would use
a different layout - when devise would kick out an auth error, it
normally uses the application layout, which includes the angular set
up and would cause an infinite loop. Also added factory girl to the
project and created a habits controller so there'd be something to
test. Not happy about making such big steps, but it's kind of all of
a piece.

: #devise #angular #db #test