add omniauth gems and generate Identity model
OAuth, Identity, omiauth_collbacks, finish_signup
omniauth step 2
oops, complromate facebook keys, change
omniauth step 3
omniauth step 4
omniauth step 5, devise confirmable
omniauth step 6, user has many identities, user edit without password
Edit user in show
temporary delete providers in user show
devise translate for callacks
font-awesome, social buttons in login and user view, temporary disable login via twitter, disable password confirmation
add rubocop
rubocop auto correct
beybug gem and fix remember me view
prepare to testing with RSpec
rspec config, generators, delete unneeded tests
prepare rspec config files
event model spec and factory
fix factories and model specs