createNewUser() should return false if it was not able to create the user
…user. This would happen if the username already exists in the database.
… where a string containing a float representation would fail to parse into the correct date.
Slight change to how class autoloading works. Now uses spl_autoload_register() to play nice with any other included frameworks.
… attempt to autoload. (As long as the use spl_autoload_register.