Merge branch '478-cmb-move-adding-removing-rider-to-and-from-cache' into '472-cmb-release'

Set display marker to false when rider is unavailable. #478

See merge request jankstudio/resq!560

public/assets/js/map_mqtt.js

@@ -142,6 +142,7 @@ class MapEventHandler {
                     }
                 } else {
                     console.log('rider not in availability check');
+                    display_marker = false;
                 }
 
                 // TODO: cache rider availability (available vs active jo) status and check before displaying icon