#448: ajax_data.js, undo modifications
#448: ajax_data.js, add more to docblock comment
Merge pull request #450 from jeff1evesque/js_ajax_data

#448: Undo changes to 'ajax_data.js'
Merge pull request #451 from jeff1evesque/python_data_validator

#440: Undo changes to 'data_validator.py'
#445: svm_training.py, undo changes
#445: svm_training.py, adjust comments
Merge pull request #452 from jeff1evesque/python_svm_training

#445: Undo Changes to 'svm_training.py'
#453: config.py, generally include 'svm_dataset' validation
Merge pull request #454 from jeff1evesque/python_config

#453: config.py, validate 'svm_dataset' validation
#455: data_validator.py, define 'json_data'