Git commits in Moodle 2.8.4 by pau.ferrer-ocana

commit d259d014bb8746dcc8dfbf6a14ebd5b47dc35f95
Author: pau.ferrer-ocana <crazyserver@gmail.com>
Date:   Wed, 18 Feb 2015 23:35:57 +0800
Tag:    v2.8.4

MDL-49234 oracle: Remove variables passed by reference error