message: Added a TODO note for refreshing cached avatars.
diff: @@ -313,6 +313,11 @@ QImage AvatarService::getAvatar(const QString& email)
  {
  QImage img = loadAvatarFromLocal(email);
  + // TODO: check the timestamp of the cached avatar and update it if too old,
  + // e.g. cached more than one hour ago. We use timestamps when asking the
  + // server for avatars so updating avatars should be a light weight
  + // operation.
  +
  // update all avatars if feature autoupdate enabled or img is null
  if (autoupdate_db_ || img.isNull()) {
  if (!get_avatar_req_ || get_avatar_req_->email() != email) {
  