adding new relic monitor
Merge branch 'rails_4.1.1' of github.com:algo31031/onestep into rails_4.1.1
refactor for UsersController#create, remove heavy logic to model validates;add format validation for user email ;fix spec/features/user_signup_spec.rb to make it pass
fix UsersController#update so that it could work with the new validates in User model
#542 login with email
could only edit/update current_user
newrelic_rpm gem commented
Merge pull request #548 from algo31031/rails_4.1.1

用户注册/编辑/登录的一点重构