Git commits in Moodle 2.3.5 by Eric Merrill

commit 7ef965ce502ff54ebc79fae73a5a18f5f3f0030a
Author: Eric Merrill <merrill@oakland.edu>
Date:   Tue, 26 Feb 2013 22:48:46 +0800
Tag:    v2.3.5

MDL-35127 mod_assign More efficient use of expensive database queries