Git commits in Moodle 2.8.3 by John Okely

commit fd648fd5f0860105528b03bb5bbfe5dc9333da66
Author: John Okely <john@moodle.com>
Date:   Tue, 06 Jan 2015 15:24:36 +0800
Tag:    v2.8.3

MDL-45784 lesson: Remove preview link for students viewing lesson


commit 502a403b430ecf79c3d2908fd6c338f7ca4d8a30
Author: John Okely <john@moodle.com>
Date:   Tue, 06 Jan 2015 11:36:42 +0800
Tag:    v2.8.3

MDL-39103 lesson: Fix lesson administration block


commit 27cf863db58a04116ee1e0ac065c9a1b50070284
Author: John Okely <john@moodle.com>
Date:   Mon, 05 Jan 2015 14:52:54 +0800
Tag:    v2.8.3

MDL-47761 enrol: Show more detail for self-enrolment errors


commit 3bb4665841ccafd26ceecd8d6fff3f446feb19c5
Author: John Okely <john@moodle.com>
Date:   Thu, 18 Dec 2014 16:48:33 +0800
Tag:    v2.8.3

MDL-44560 glossary: Fix pagination on glossary category view