Added sontek (John Anderson) to contributors

Conflicts:
	CONTRIBUTORS.txt

CONTRIBUTORS.txt

@@ -176,4 +176,5 @@ Nathan Van Gheem, 2014/10/28
 Gino Ledesma, 2014/10/28
 Thomas French, 2014/11/10
 Michael Permana, 2014/11/6
+John Anderson, 2014/12/27
 Luke Burden, 2015/01/24