Categories working tested and added link to sidebar

Conflicts:
	Gemfile
	config/mongoid.yml

vendor/built_in_modules/location/init.rb

@@ -38,6 +38,13 @@ module Location
 
       head_link_path "panel_location_back_end_locations_path"
 
+      context_link 'categories',
+                     :link_path=>"panel_location_back_end_location_categories_path" ,
+                     :priority=>1,
+                     :active_for_action=>{:localtion_categories=>:index},
+                     :available_for => [:manager]
+
+
     end
   end
 end