Add Shoulda-Matchers to Gemfile
Use guard rspec
Create User model with initial rspec tests and factories
Update users schema
Update schema [remove password / password confirmation]
Add validations to User model
Routing tests
Update routes, remove old test file
Update User model and tests
Preliminary User controller and related tests
User -> Users controller. Implement registration
Move helper to user_helper; refactor, add tests for sensible_error() and error_message_sanitize()
More explicit return in user helper
Tests to start off sessions controller
Expose sessions helper to entire app
Update sessions controller tests
Update routes to include sessions controller
Implement sessions controller, mostly passing; added more controller tests
Modify User model tests
Overhaul app to fit new requirements. Mostly implement user model. Add bootstrapped styling. Need to redo tests.