added delete all posts button

wired up the ability to enable all themes

app/serializers/admin_detailed_user_serializer.rb

@@ -8,7 +8,8 @@ class AdminDetailedUserSerializer < AdminUserSerializer
              :post_count,
              :flags_given_count,
              :flags_received_count,
-             :private_topics_count
+             :private_topics_count,
+             :can_delete_all_posts
 
   has_one :approved_by, serializer: BasicUserSerializer, embed: :objects
 
@@ -19,6 +20,10 @@ class AdminDetailedUserSerializer < AdminUserSerializer
   def can_grant_admin
     scope.can_grant_admin?(object)
   end
+  
+  def can_delete_all_posts
+    scope.can_delete_all_posts?(object)
+  end
 
   def moderator
     object.has_trust_level?(:moderator)