Merge pull request #707 from jeff1evesque/python_data_validator

#704: data_validator.py, 'import jsonschema_dataset'
#705: config.py, add docblock for 'jsonschema_dataset()'
#705: config.py, add skeleton function for 'jsonschema_dataset'
#705: config.py, remove 'jsonschem_dataset'
Merge pull request #708 from jeff1evesque/python_config

#705: no changes made to 'config.py'
#704: data_validator.py, remove 'import jsonschema_dataset'