Run os.path.normcase() on paths to handle Windows case (gcf #403).
Run os.path.normcase() on paths to handle Windows case (gcf #403).

tcmitchell/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,tcmitchell/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools