scanone: not using observed, so commenting out
Indent style for comments describing blocks
scanone: using a switch instead
Scanone: simplified CLI parsing for genotypes should give the same result
scanone: refactoring name f -> founders
chromosome: rename hash_cs to c_markers
chromosome: rename m.chromosome.name to c_name
The magic of

  @property M[] list(M)(Markers!M ms) { return ms.list; }

gets rid of this special case code!
Chromosome: minor edits
Chromosome: minor edits
Chromosome: minor edits
chromosome: using map in get_markers_by_chromosome
scanone: remove spaces