Change history of let - a simpler sugar for expr

Rev	Date	Modified by	Minor edit	Spam	WikiText	Revert to
4	2015-02-11 20:21:10	dkf	no	no	4	4
3	2005-12-10 20:32:17	83.196.67.152	no	no	3	3
2	2005-12-10 16:53:44	83.196.204.223	no	no	2	2
1	2005-12-10 16:53:17	83.196.204.223	no	no	1	1
0	2005-12-10 16:49:43	83.196.204.223	no	no	0	0