Change some Gemfile sources
Add devise for users
Add rspec
Add machinist
Add database_cleaner
Add shoulda-matchers
Allows underscore on username after one char
Tests for User validations
Add activeadmin
Permitted params and forms on admin/user
Some tests for AdminUser
Just reorder User model validation and attr_accessor
User spec: validate uniqueness of username with case_insensitive
Add pry-rails
Tests for User.find_first_by_auth_conditions
Add simplecov
Inserted SimpleForm to project
Changed application.rb