Git commits in Moodle 2.6.2 by Tomasz Muras

commit 71037bf26c1e66c628f952b777a9b068775f7b24
Author: Tomasz Muras <tm@enovation.ie>
Date:   Mon, 03 Mar 2014 11:23:44 +0800
Tag:    v2.6.2

MDL-43656 mod_feedback: availablity date logic incorrect