#253: ../../tests/php/index.php, add references to new AJAX scripts
#260: ajax_data.js, update reference to 'load_dataset.php'
Merge branch 'javascript' of https://github.com/jeff1evesque/machine-learning into javascript
#260: tests/php/index.php, update reference to 'load_logic.php'
Merge pull request #261 from jeff1evesque/javascript

#260: Update AJAX reference for rename PHP loader files