message: Meshes on by default, need to improve in future
  This is easier, and we are doing it for other display types, but we
  should get better at letting plugins turn these on when it makes sense.
diff: @@ -36,7 +36,7 @@ using Rendering::GeometryNode;
  using Rendering::GroupNode;
  using Rendering::MeshGeometry;
  -Meshes::Meshes(QObject* p) : ScenePlugin(p), m_enabled(false)
  +Meshes::Meshes(QObject* p) : ScenePlugin(p), m_enabled(true)
  {
  }
  