Adds grant and revoke moderation buttons so admins can make users moderators

app/serializers/admin_detailed_user_serializer.rb

@@ -2,8 +2,10 @@ class AdminDetailedUserSerializer < AdminUserSerializer
 
   attributes :moderator,
              :can_grant_admin,
-             :can_impersonate,
              :can_revoke_admin,
+             :can_grant_moderation,
+             :can_revoke_moderation,
+             :can_impersonate,
              :like_count,
              :post_count,
              :flags_given_count,
@@ -21,6 +23,14 @@ class AdminDetailedUserSerializer < AdminUserSerializer
     scope.can_grant_admin?(object)
   end
 
+  def can_revoke_moderation
+    scope.can_revoke_moderation?(object)
+  end
+
+  def can_grant_moderation
+    scope.can_grant_moderation?(object)
+  end
+
   def can_delete_all_posts
     scope.can_delete_all_posts?(object)
   end