Change history of Calculator using the infix package

Rev	Date	Modified by	Minor edit	Spam	WikiText	Revert to
6	2017-11-30 15:51:37	dbohdan	no	no	6	6
5	2017-11-23 22:02:18	gold	no	no	5	5
4	2017-11-23 22:01:42	gold	no	no	4	4
3	2013-08-12 04:04:52	escargo	no	no	3	3
2	2013-08-11 11:46:45	pooryorick	no	no	2	2
1	2010-03-22 15:58:24	lars_h	no	no	1	1
0	2010-03-22 08:08:07	arjen	no	no	0	0