Sort available countries in alphabetical order
Sort available countries in alphabetical order

When a map is made in bounding box mode, the list of available countries
is quite long and without any specific order. We now sort countries in
alphabetical order.

maposmatic/maposmatic,wonderchook/MapOSMatic,maposmatic/maposmatic,maposmatic/maposmatic,hholzgra/maposmatic,hholzgra/maposmatic,maposmatic/maposmatic,hholzgra/maposmatic,hholzgra/maposmatic,wonderchook/MapOSMatic,hholzgra/maposmatic