Mario de Sousa <msousa@fe.up.pt> [Wed, 03 Oct 2012 17:44:25 +0100] rev 664
Delete class elements that are not used (clean up code).
Manuele Conti <conti.ma@alice.it> [Fri, 28 Sep 2012 23:59:28 +0200] rev 663
Add check whether external var matches to global var.