Change history of Gray code

Rev	Date	Modified by	Minor edit	Spam	WikiText	Revert to
4	2011-12-15 10:11:54	dkf	no	no	4	4
3	2011-12-14 20:50:02	AK	no	no	3	3
2	2011-12-11 16:32:48	dkf	no	no	2	2
1	2003-07-25 17:33:55	68.115.83.25	no	no	1	1
0	2003-07-25 17:30:50	68.115.83.25	no	no	0	0