WayBack fixes

I have managed to get WayBack working locally.
It’s not quite as it was before, as I have re-used the regular info popup rather than the simplified popup that was used before.

  • Replaced Marker.setVisible calls with changes to the visibility style of markers’ elements, to hide and show the markers…
  • Replace use of Google Maps infoPopup with’s info popup.
  • At the end, displays all the marker elements that were hidden.

How can I get these changes merged to