add geosearch functionality and scale bar to map
add geosearch functionality and scale bar to map

Adding geosearch functionality for Leaflet (see https://github.com/smeijer/L.GeoSearch)
Adding scale bar to Leaflet map (http://leafletjs.com/reference.html#control-scale)
52North/js-sensorweb-client,52North/js-sensorweb-client,EHJ-52n/js-sensorweb-client,EHJ-52n/js-sensorweb-client,janschulte/js-sensorweb-client,janschulte/js-sensorweb-client