[mkgmap-dev] Commit r4223: merge from couuntry-border branch

Version mkgmap-r4223 was committed by gerd on Mon, 13 Aug 2018 merge from couuntry-border branch This introduces new option --add-boundary-nodes-at-admin-boundaries which is on by default with a value of 2. See help for details. http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4223