Problem when closing the select features & search parcels tab.

[andersd]

When the select features tab is closed the features attributes are removed from the tab but the select features are not removed from the map. I had thought that when you closed the select features or search parcels tab that the selected set would be removed. It is not.

To replicate:

1. Open demo
2. Select features using a small triangle or search parcels (owner cn anderson).
3. Selected set appears on map and attributes appear in list.
4. Close tab (select or search)
5. Attributes are gone but the graphical outline of the selected set remains on the map.

[bfischer]

moved from ​https://github.com/geomoose/geomoose/issues/25