login with Google account (simply)
rspec:install
add OAuth login test
add OAuth login test
add comment
redirect to login, if not login in info page
add DS_Store to gitignore
delete  application.html.erb
fixed indent( tab -> space )
use dotenv
use sqllite
fixed application.html.erb
remove DS_Store from gitignore
delete magic comment
deleted app/helpers/users_helper.rb
fixed hash writing
added time_zone setting to application.rb
fixed flash[:notice] to notice
Improved User model
fixed validation in Identity model