Git commits in Moodle 2.9.3 by Ben Kelada

commit ab029256b31b0f1cbb0af178e76ec241b051e2ff
Author: Ben Kelada <ben.kelada@open.edu.au>
Date:   Tue, 06 Oct 2015 12:09:42 +0800
Tag:    v2.9.3

MDL-51673 messages: remove strict type check of int vs string

commit 1f7c86cd14743f64c4d07af907fe701cff818038
Author: Ben Kelada <ben.kelada@open.edu.au>
Date:   Mon, 31 Aug 2015 12:12:42 +0800
Tag:    v2.9.3

MDL-51253 forum: fix urls for exceptions and redirects