zsh: enable pcre
zsh: bump version
Windowmaker: update to 0.95.6
Merge pull request #4301 from AndersonTorres/windowmaker

Windowmaker: update to 0.95.6
pythonPackages.configobj: new version needs six as dependency
New package: tty-clock-0.1
Merge pull request #4302 from k0ral/tty-clock

New package: tty-clock-0.1
nixos: munin/jenkins: specify timeout correctly
nsd: add hrdinka to maintainers
nsd: update to version 4.1.0
nsd: fix description, license and platforms
Merge pull request #4303 from hrdinka/nsd

NSD update to version 4.1.0
fontconfig: stop using xml:space; vital for nixos+2.11

This is a proper fix for problems described in ec985c8ffa6d29 .
The code is from @lethalman.
Merge pull request #4289 from muflax/zsh

zsh: version bump to 5.0.6 and enable pcre