Git commits in Moodle 1.9.12 by Daren Chandisingh

commit 18174ef08201ddfa4343588c56c3aaafbde0847c
Author: Daren Chandisingh <daren.chandisingh@lancashire.gov.uk>
Date:   Mon, 21 Feb 2011 19:49:49 +0800
Tag:    v1.9.12

MDL-26534 allow iframes in course category descriptions