Devise custom routes as seen on http://stackoverflow.com/a/6013912/2596323 and http://sikachu.com/2010/12/my-devise-custom-routes/

routes.rb

devise_for :users, :skip => [:registrations, :sessions] do 
  # devise/registrations 
  get 'signup' => 'devise/registrations#new', :as => :new_user_registration 
  post 'signup' => 'devise/registrations#create', :as => :user_registration 
  get 'users/cancel' => 'devise/registrations#cancel', :as => :cancel_user_registration 
  get 'users/edit' => 'devise/registrations#edit', :as => :edit_user_registration 
  put 'users' => 'devise/registrations#update' 
  delete 'users/cancel' => 'devise/registrations#destroy'   
  
  # devise/sessions 
  get 'signin' => 'devise/sessions#new', :as => :new_user_session 
  post 'signin' => 'devise/sessions#create', :as => :user_session 
  get 'signout' => 'devise/sessions#destroy', :as => :destroy_user_session 
end