Updated version for 'six' from 1.9.0 to 1.10.0 due to failing build on Travis CI
Updated version for 'six' from 1.9.0 to 1.10.0 due to failing build on Travis CI

ClinGen/clincoded,ClinGen/clincoded,ClinGen/clincoded,ClinGen/clincoded,ClinGen/clincoded