added changes line
- Ingest any object that __geo_interface__ (ocefpaf #880)
- Added `FeatureGroupSubGroup` plugin (shtrom #875)
- Added `duration` option to `TimestampedGeoJson` (andy23512 #894)
+- Added `zoom_control` to `Map` to toggle zoom controls as per enhancement (#795) (okomarov #899)
API changes
