Merge tag 'upstream/1.4.2'

Upstream version 1.4.2

1. gpg: Signature made Tue 13 Mar 2018 01:02:55 PM UTC
2. gpg: using RSA key C361B1E3029543EBC625E97D8372A477EFAE59C2
3. gpg: Good signature from "Ondřej Surý <ondrej@sury.org>" [ultimate]
4. gpg: aka "Ondřej Surý <ondrej@debian.org>" [ultimate]
5. gpg: aka "Ondřej Surý <ondrej@isc.org>" [ultimate]
6. Primary key fingerprint: 30B9 33D8 0FCE 3D98 1A2D 38FB 0C99 B70E F4FC BB07
7. Subkey fingerprint: C361 B1E3 0295 43EB C625 E97D 8372 A477 EFAE 59C2