Remove temporary announcement about database restore
Use state.zoom consistently
Add already created assets to layers when they become visible
Use zoom level checks from zoom levels - utility
Add assets hidden if asset validity period is not currently selected
Show asset only if zoom levels is correct when validity period changes
Show asset when adding it on the layer if validity period permits
Filter only tram stops out when exporting data to Vallu
Merge pull request #256 from finnishtransportagency/filter-only-tram-stops-in-vallu-export

Filter only tram stops out when exporting data to Vallu
Refactored marker implementation and styles for bus stops
Bus stop selection changes content in asset layer, wip
Style for expanded bus stop
Handle for asset type changes
Handle direction change