Git commits in Moodle 3.1.0 by Charles Fulton

commit 87b007b4ddab60699144bba59a1d118aaac97922
Author: Charles Fulton <mackensen@gmail.com>
Date:   Sun, 25 Mar 2012 22:39:24 +0800
Tag:    v3.1.0-beta

MDL-372 forum: support for pinned discussion topics