#289: load_dataset.php, remove 'file_type', 'file_size'
Merge pull request #290 from jeff1evesque/php_load_dataset

#289: Remove 'file_type', 'file_size'
Merge branch 'python_data_validator' of https://github.com/jeff1evesque/machine-learning into python_data_validator
#267: scikit-learn, merge master / upstream branch