Sat Sep  7 19:09:25 2002  Jarkko Hietaniemi  <jhi@iki.fi>

	* Added _set_update_callback() internal interface
	  for derived ("protected") classes that want to
	  cache some computed data but invalidate it when
	  the population data changes.

	* Release as version 0.03. 

Thu Apr 25 01:42:48 2002  Jarkko Hietaniemi  <jhi@iki.fi>

	* Just doc tweaks, no functionality changes.

	* Release as version 0.02.