#15 Set pan as predefined option on map

[Gianni Campanile]

Sets Pan (instead of mark) as the predefined selected tool on search and editing map. When searching a metadata or when editing a new record, the predefined tool on the map is to mark a new extent. This implies that if you click on the map you loose the previous extent. Thhis simple patch sets the predefined tool to be Pan, so that a click will just pan the map while to select a new extent the appropriate tool must be selected.

[Gianni Campanile]

Sets Pan as default on map