0.4 -> 0.5
	Documentation corrections. Thanks to sbekman@iil.intel.com.
0.3 -> 0.4 
	Small bugfixes
0.2 -> 0.3
	Bugs in rendering algorithm corrected (thanks to rami@active.co.il for input)
	External debug control added (you need this only if you are me or 
	you want to know how it works)
0.2	
	First real version on CPAN