alpar [Tue, 10 Oct 2006 13:50:47 +0000] rev 2233
docfix
alpar [Thu, 05 Oct 2006 10:18:58 +0000] rev 2232
Fix a bug and two warnings
deba [Tue, 03 Oct 2006 11:46:39 +0000] rev 2231
Some rearrangement of concepts and extenders
BpUGraph concepts and concept check test