Tue, 29 Jul 2008 14:54:08 +0200Merge
Alpar Juttner <alpar@cs.elte.hu> [Tue, 29 Jul 2008 14:54:08 +0200] rev 239
Merge

Tue, 29 Jul 2008 13:58:03 +0200Converting INVALID arc to INVALID edge
Balazs Dezso <deba@inf.elte.hu> [Tue, 29 Jul 2008 13:58:03 +0200] rev 238
Converting INVALID arc to INVALID edge

Tue, 29 Jul 2008 10:27:36 +0200Fixing constness of Graph in GraphWriter
Balazs Dezso <deba@inf.elte.hu> [Tue, 29 Jul 2008 10:27:36 +0200] rev 237
Fixing constness of Graph in GraphWriter