v0.0.1, 17/02/2013 -- Initial release
v0.0.2, 17/02/2013 -- Trivial packaging problems
v0.1.0, 17/02/2013 -- Switch to more sophisticated algorithm that better run length encodes the results
v0.1.1, 18/02/2013 -- Significant improvement of behaviour in the presence of cycles of length 2.
