Change history of EAN-13 encode/decode functions

Rev	Date	Modified by	Minor edit	Spam	WikiText	Revert to
4	2012-01-06 14:27:39	RLE	no	no	4	4
3	2011-04-05 23:52:52	AK	no	no	3	3
2	2005-12-29 21:04:01	80.58.21.235	no	no	2	2
1	2004-12-17 10:00:01	pascal,80.60.133.132	no	no	1	1
0	2004-12-17 08:42:39	pascal,80.60.133.132	no	no	0	0