Improvement:

The item sets are written in the order sorted by the labels.

It solves the problem if we read a graph from a file and
then write it back then the nodes will be reversed.
It can be switched off with the LemonWriter interface.

lemon (0.5-1) unstable; urgency=low

  * Initial Release.

 -- LEMON Development Team <etik-ol@cs.elte.hu>  Tue, 14 Jun 2005 08:29:34 +0200