[rkward] /: Formally merge ancient release branch 'origin/releases/0.5.7'

[Thomas Friedrichsmeier]

Git commit 9cfad52a3273b37c59daf3785c9ff9e6e936892f by Thomas Friedrichsmeier.
Committed on 22/04/2018 at 14:49.
Pushed by tfry into branch 'master'.

Formally merge ancient release branch 'origin/releases/0.5.7'


https://commits.kde.org/rkward/9cfad52a3273b37c59daf3785c9ff9e6e936892f