Merge pull request #388 from jeff1evesque/python_data_validator

#387: data_validator.py, change 'Notice' -> 'Error'
#385: svm_training.py, implement wrapping 'IF' statement
#385: unnest 'elif' statement
Merge pull request #389 from jeff1evesque/python_svm_training

#385: Check file upload(s) in 'svm_training.py'
#386: svm_analysis.py, add comment
#386: svm_analysis.py, first nested 'IF' statement
#386: svm_analysis.py, remove unnececessary 'print' statement
Merge pull request #390 from jeff1evesque/python_svm_analysis

#368: Validate SVM properties in 'svm_analysis.py'
#385: svm_training.py, add 'None' parameter in '.get()'
Merge pull request #391 from jeff1evesque/python_svm_training

#385: svm_training.py, add 'None' parameter in '.get()'
#375: data_validator.py, nest within 'if self.svm_session == \'training\':'