Add support to specify search extent in DirectionsWidget.
Add support to specify search extent in DirectionsWidget.

Esri/arcgis-viewer-flex,CanterburyRegionalCouncil/arcgis-viewer-flex,Esri/arcgis-viewer-flex,CanterburyRegionalCouncil/arcgis-viewer-flex,CanterburyRegionalCouncil/arcgis-viewer-flex