fix tests for site controller

app/controllers/site_controller.rb

@@ -103,7 +103,9 @@ class SiteController < ApplicationController
     @locale = params[:copyright_locale] || I18n.locale
   end
 
-  def welcome; end
+  def welcome
+    require_user
+  end
 
   def help; end
 

app/models/ability.rb

@@ -3,9 +3,10 @@ class Ability
 
   def initialize(user)
     can :index, :site
+    can [:permalink, :edit, :help, :fixthemap, :offline, :export, :about, :preview, :copyright, :key, :id, :welcome], :site
 
     if user
-      can :welcome, :site
+      can :weclome, :site
     end
     # Define abilities for the passed in user here. For example:
     #