Add more gems about authentication
Add pg to Gemfile
Update gems
Set activerecord as orm
Fix iframe@src
Introduce Shoulda as testing framework
Add database settings
Generate User model
Downgrade ActiveRecord version
Install sqlite3 gem
Update Gemfile.lock
Add rack-test gem
Add poltergeist gem
Update Gemfile.lock
Fix database names
Add constraints to users table
Add omniauth-openid gem
Enable sessions at config/apps.rb
Add warden_omniauth gem
Add twitter settings