Git commits in Moodle 3.7.6 by Alexander Bias

commit 49361f9a2466c6c3deb03d270109aa35de8312ca
Author: Alexander Bias <alexander.bias@uni-ulm.de>
Date:   Tue, 24 Mar 2020 04:37:00 +0800
Tag:    v3.7.6

MDL-58964 navigation: Reindex array when element is removed


commit b6d5a6c6197a01f2704181f24fb593d0dc383e7e
Author: Alexander Bias <alexander.bias@uni-ulm.de>
Date:   Fri, 20 Mar 2020 03:49:45 +0800
Tag:    v3.7.6

MDL-58964 navigation: Add class attributes to Boost flat navigation