Merge pull request #359 from jeff1evesque/php_load_logic

#356: load_logic.php, properly format JSON structure
#355: load_dataset.php, move 'json_creator' outside 'data' element
#355: load_dataset.php, 'print(result)'
Merge pull request #361 from jeff1evesque/php_load_dataset

#355: Move 'json_creator' outside 'data' element
#362: svm_training.py, repair 'if-elif' statement
Merge pull request #363 from jeff1evesque/python_svm_training

#362: svm_training.py, repair 'if-elif' statement
Merge pull request #365 from jeff1evesque/php_load_logic

#356: Format JSON in 'load_logic.php'
#364: load_logic.php, 'print json_encode()' instead of error string