add data (gml, utf, shape, utfgrid creator)
add feature highlight (coutry boundaries)
add utf grid and html div for the popup
add feature popup
add TODO file
unknown
make the map work again
remove osm layer
update data and make new map without utfgrid
define number of zoom level and adjust resolution
add feature highlight
replace geojson file (country boarders)
limit map naviagion to defined map extend
change color of polygons when highlighted or not highlighted
change color of polygons
modify popup placement (weighted centroid)
change color of selected polygon