Update and fix test kitchet to be conformant with poltergeist

spec/support/kneet_connections.rb

@@ -0,0 +1,10 @@
+class ActiveRecord::Base
+  mattr_accessor :shared_connection
+  @@shared_connection = nil
+
+  def self.connection
+    @@shared_connection || retrieve_connection
+  end
+end
+
+ActiveRecord::Base.shared_connection = ActiveRecord::Base.connection

spec/support/login_macros.rb

@@ -1,17 +1,14 @@
 module LoginMacros
+
+  include Warden::Test::Helpers
+  Warden.test_mode!
+
   def sign_in(user)
-    visit new_user_session_path
-
-    fill_in 'user_email', with: user.email
-    fill_in 'user_password', with: user.password
-    find(:xpath, "//div[@id='content']//button[@type='submit']").click
-
-    expect(page.has_content?('Signed in successfully')).to be true
+    login_as(user, :scope => :user)
   end
 
   def sign_out
-    Capybara.current_session.driver.browser.clear_cookies
-    visit root_path
-    expect(page.has_content?('Sign In')).to be true
+    logout(:user)
   end
+
 end