Git commits in Moodle 2.9.2 by Alistair Spark

commit 7ae86a915c0e8a69d6d12d35eaf55d50de4ef835
Author: Alistair Spark <aspark21@users.noreply.github.com>
Date:   Tue, 11 Aug 2015 17:13:48 +0800
Tag:    v2.9.2

MDL-50391 format_singleactivity: fix LTI Tool opens in existing window