add gem omniauth
add updated secrets.yml
update config/secrets.yml in .gitignore
delete secrets.yml
commit omniauth setting
g model user provider:string uid:string nickname:string image_url:string
add not null colomn and index
execute migrate
add twitter login link
g controller sessions
add login
add logout function
Merge pull request #2 from ta1kt0me/apply-bootstrap-to-gem

Apply bootstrap to gem