Remove unimplemented properties. Correct defintions of equals() and hasCode(). Add setOnInfoWindowClickListener and remove old method from Marker. Refactor showInfoWindow() to remove need for exposing internal method. Make select/deselectMarker public. Add getSelectedMarker. Fix bug where you couldn't reselect a closed info window. Add empty constructor to LatLng and LatLngZoom. Fixes #2546 Fixes #2631 Fixes #2448