Manuele Conti <conti.ma@alice.it> [Fri, 20 Jul 2012 23:18:32 +0200] rev 620
Remove warning about comparisons between int and unsigned int.
Mario de Sousa <msousa@fe.up.pt> [Wed, 01 Aug 2012 10:31:14 +0100] rev 619
Support for data types of STEP.T and STEP.X in SFCs