#671: config.py, undo changes from 26f6b75
#654: data_validator.py, undo changes from b3af218
Merge pull request #678 from jeff1evesque/python_config

#671: config.py, undo changes from 26f6b75
Merge pull request #679 from jeff1evesque/python_data_validator

#654: data_validator.py, undo changes from b3af218
#680: data_validator.py, wrap '.lower()' method with IF statement
Merge pull request #681 from jeff1evesque/python_data_validator

#680: Wrap '.lower()' method with IF statement
#461: svm_json.py, import 'defaultdict', remove 'json' import
#461: svm_json.py, correct logic
#461: svm_json.py, 'import json'
#461: svm_json.py, add comments
#461: svm_json.py, replace 'print' -> 'return'
#461: svm_json.py, minor language change
Merge pull request #682 from jeff1evesque/python_svm_json

#461: Define method to convert 'csv' to 'JSON'
#675: svm_training.py, 'import merge'