Geometry section of Ants paper
Biology section of Ants paper
Export Ant constructor, etc. Add Ord class to Pos
Hack out Geography section. World is super ugly.
Use const
Add exports. Tidy setAntAt and clearAntAt functions
Remove unused language pragma
Code tidy
Chemistry section of ants paper
Returning wrong boolean value from checkAnyMarker
Phenomenology section of ants paper. Missing anthills.
Anthills added with World modified.

Using record syntax to make it a bit nicer.
Add placeholder for Cartography section.
Add code for Neurology section. Not sure where brain state should reside
Merge branch 'hack-it-out-session'