added RSpec support things

spec/support/devise.rb

@@ -0,0 +1,3 @@
+RSpec.configure do |config|
+  config.include Devise::TestHelpers, type: :controller
+end

spec/support/helpers.rb

@@ -0,0 +1,5 @@
+require 'support/helpers/session_helpers'
+
+RSpec.configure do |config|
+  config.include Features::SessionHelpers, type: :feature
+end

spec/support/helpers/session_helpers.rb

@@ -0,0 +1,19 @@
+module Features
+  module SessionHelpers
+    def sign_up_with(screen_name, email, password, confirmation)
+      visit new_user_registration_path
+      fill_in 'User name', with: screen_name
+      fill_in 'Email address', with: email
+      fill_in 'Password', with: password
+      fill_in 'Password confirmation', :with => confirmation
+      click_button 'Sign up'
+    end
+
+    def signin(email, password)
+      visit new_user_session_path
+      fill_in 'User name', with: email
+      fill_in 'Password', with: password
+      click_button 'Sign in'
+    end
+  end
+end