Git commits in Moodle 3.2.6 by Alexander Bias

commit 6eeaf27bd1f19e91a06da29f16461ec5ca56c031
Author: Alexander Bias <alexander.bias@uni-ulm.de>
Date:   Mon, 21 Aug 2017 06:38:17 +0800
Tag:    v3.2.6

MDL-59879 navigation: Add node key to competencies navigation node