Merge pull request #265 from jeff1evesque/php_load_dataset

#244: Resolve sending 'file upload' from ajax to PHP
#242: scikit-learn, update 'scikit-learn' submodule (10-01-14)
Merge pull request #266 from jeff1evesque/submodule_scikit-learn

#242: Update 'scikit-learn' submodule (10-01-14)
#247: data_validator.py, initial 'file_upload_validation()' skeleton
#247: data_validator.py, set constructor 'optional arguments'
Merge pull request #268 from jeff1evesque/python_data_validator

#247: Create 'file_upload_validation()'
#267: load_dataset.php, set 'uploaded file' to 'svm_training.py'