message: rtt_tf: tackle comments of PR
diff: @@ -207,7 +207,7 @@ namespace rtt_tf
  }
  // Publish the geometry messages obtained from the lookupTransform on
  // tracked transformations
  - // Range for not supported in ISO C++ 11
  + // Range for not supported in ISO pre-C++ 11
  // for (const auto& tracker : ports_trackers) {
  // auto msg = lookupTransform(tracker.first.first, tracker.first.second);
  // tracker.second->write(msg);
  @@ -225,7 +225,7 @@ namespace rtt_tf
  RTT::log(RTT::Warning) << "The period of the component is 0 (zero), so no"
  " updates form TF will be published automatically" << RTT::endlog();
  }
  - buffer_core = BufferCorePtr(new tf2::BufferCore());
  + buffer_core.reset(new tf2::BufferCore());
  transform_listener = TransformListenerPtr(new tf2_ros::TransformListener(*buffer_core));
  return true;
  }
  @@ -336,8 +336,8 @@ namespace rtt_tf
  {
  Logger::In(this->getName());
  const std::pair<std::string, std::string> transfrom_pair(target, source);
  - const std::string name_transform = source + std::string("_") + target;
  - const std::string name_port = std::string("tracker_tf_") + name_transform;
  + const std::string name_transform = source + "_" + target;
  + const std::string name_port = "tracker_tf_" + name_transform;
  if (ports_trackers.find(transfrom_pair) != ports_trackers.end()) {
  RTT::log(RTT::Warning) << "The transfrom from " << source << " to " << target <<
  " is already tracked." << RTT::endlog();
  