MapModel: add getters for random maps based on type, so that the mapContainer does not have to magically know how maps and separators are ordered within the model
As a special exception, FreeType can also be built with the 'makepp'
build tool, available from http://makepp.sourceforge.net.
Note, however. that you will need at least version 1.19 and pass the
option --norc-substitution to have it work correctly.