Git commits in Moodle 2.7.3 by John Okely

commit 4800d01e2e670262c036e2bd8a4fdec1f8feb0ac
Author: John Okely <john@moodle.com>
Date:   Thu, 06 Nov 2014 15:56:42 +0800
Tag:    v2.7.3

MDL-47930 mod_forum: Detect subscription to subscription disabled forums

commit a866ad40beb1c1d7faca2da9c3cbad2dcf6fa32b
Author: John Okely <john@moodle.com>
Date:   Fri, 31 Oct 2014 13:36:52 +0800
Tag:    v2.7.3

MDL-47949 mod_wiki: Validate parameters for page deletion

commit 263f78b8b804fe7dbcd6ffadcadad2c94a0093f7
Author: John Okely <john@moodle.com>
Date:   Wed, 29 Oct 2014 10:50:25 +0800
Tag:    v2.7.3

MDL-47921 mod_lti: Add access control to mod/lti/launch.php