Update cotede_test.py to handle pre-1900 profiles
Update cotede_test.py to handle pre-1900 profiles

woa_normbias can't handle pre-1900 profiles because it uses datetime.datetime.strftime which fails if given a date before 1900. Profiles from before 1900 are set to have year=1900. This should not have an impact on QC results but will prevent an error.
IQuOD/AutoQC,BillMills/AutoQC,BillMills/AutoQC,castelao/AutoQC,s-good/AutoQC,IQuOD/AutoQC,s-good/AutoQC