changed direct public property access to using getter methods

phpdoc improvements

application/core/Bills/BillData.php

@@ -12,7 +12,6 @@ use ManiaControl\Players\Player;
  * @license   http://www.gnu.org/licenses/ GNU General Public License, Version 3
  */
 class BillData {
-
 	/*
 	 * Public properties
 	 */

application/core/Bills/BillManager.php

@@ -28,6 +28,7 @@ class BillManager implements CallbackListener {
 	/*
 	 * Private properties
 	 */
+	/** @var ManiaControl $maniaControl */
 	private $maniaControl = null;
 	private $openBills = array();