2000-09-25 - v1.2:
	* Fixed extra format arg on no alignment error.
	* Fixed backwards different height/width errors.
2000-09-03 - v1.1:
	* Added pngcrush option.
	* Fixed -v option.
	* Fixed -o 0 exception when optimization was already turned off.
	* Fixed manpage NAME section.
2000-08-11 - v1.0:
	* first release