Git commits in Moodle 2.7.6 by Adrian Greeve

commit 2b8b2e876e086b6d9d13847de423436f1a9cd110
Author: Adrian Greeve <adrian@moodle.com>
Date:   Tue, 27 Jan 2015 14:23:41 +0800
Tag:    v2.7.6

MDL-48038 mod_tag: Unit tests for tag cron functions.

commit 102d449fa91a784ef5ae886a9f7942692c948a1a
Author: Adrian Greeve <adrian@moodle.com>
Date:   Tue, 27 Jan 2015 12:52:32 +0800
Tag:    v2.7.6

MDL-48038 mod_tag: Improvement of tag cron.