#342: load_dataset.php, add 'Python returns JSON object' case
#342: load_dataset.php, remove extra semicolon
#342: load_dataset.php, add 'print json_encode(arr_results)'
#342: load_dataset.php, move 'print()' inside 'if'
Merge pull request #345 from jeff1evesque/php_load_dataset

#342: Return JSON from 'load_dataset.php'