Git commits in Moodle 2.7.4 by Atanas Atanasov

commit fb374e61d4b116bc0b4041a9201d677b163a6c3b
Author: Atanas Atanasov <atanasow@gmail.com>
Date:   Wed, 17 Dec 2014 20:21:03 +0800
Tag:    v2.7.4

MDL-20304 lesson: do not send practice lesson grades to gradebook