GRN-80: Allow local accounts on multitenant (#428)

* Changed the way the omniauth providers are declared

* Allow local authentication for multitenant mode based on customer settings

* Cleanead up code mandated by rubocop

* Completed implementation for signin and added the one for signup

* Fixed issue with rubocop

* Renamed customer_name to lb_user

* Renamed lb_user -> user_domain, fixed issue with signup controller, email verification WAS NOT implemented

* Completed implementation of email_verification

* Fixed rubocop issue

* Final update

* Fix for test with loadbalancer

* Make sure loadbalancer mockup is only used when env defined

* Fix for test on rooms_controller

* Fixed most of the test failing on multitenant env

* Fixed issue detected by rubocop

* Fixed issue with activation tockens not working on resend

* Fixed new issue found by rubocop

* Updated travis script

* Harcoded credentials for mockup

* Updated expectation on start_session

* Fixed issue with duplication of home room

* Updated script for rubocop

* Restored Gemfile

app/controllers/rooms_controller.rb

@@ -224,12 +224,12 @@ class RoomsController < ApplicationController
 
   def validate_verified_email
     if current_user
-      redirect_to account_activation_path(current_user) unless current_user.email_verified
+      redirect_to account_activation_path(current_user) unless current_user.activated?
     end
   end
 
   def verify_room_owner_verified
-    unless @room.owner.email_verified
+    unless @room.owner.activated?
       flash[:alert] = t("room.unavailable")
 
       if current_user