make_maps_code - [not for users] rebuild Maps.pm from the contents of the maps directory.
Run this from the root of the distribution. Default behaviour is to create a new copy of the module in the current directory.
build/make_maps_code --diff | --update --version v.vv
Series to be built should be defined in maps/map_series.txt and data should all be in the maps/ directory.
Create the module in the current directory and call diff to compare it to the version in lib
Overwrite the module in lib directly.
Apply the new version number v.vv to the newly created module.
Toby Thurston -- 20 Feb 2016
