add: need gem install for user auth by twitter
add: controller home, index
add: initialize configure --> devise
add: create user model

  provider -> kind social id
  uid      -> user social id
  trace_id -> user id for url
add: login service with omniauth
fix: auth.info.nickname to trace_id
fix: template
fix: use NOT NULL options
Merge pull request #1 from esehara/feature/registration-users

Feature/registration users