Merge remote-tracking branch 'origin/master' into staging

* origin/master: (693 commits)
  buildGoModule: use go_1_12 instead of go_1_11 (#58103)
  gitAndTools.lab: 0.15.2 -> 0.15.3 (#58091)
  signal-desktop: 1.22.0 -> 1.23.0
  added missing semicolon to documentation
  terminus_font_ttf: 4.46.0 -> 4.47.0
  buildGoModule: remove SSL env vars in favor of cacert in buildInputs (#58071)
  dav1d: init at 0.2.1
  dropbox-cli: 2018.11.28 -> 2019.02.14
  atlassian-confluence: 6.14.1 -> 6.14.2
  maintainers: update email for dywedir
  python.pkgs.hglib: use patch to specify hg path (#57926)
  chkrootkit: 0.52 -> 0.53
  radare2-cutter: 1.7.2 -> 1.8.0
  autorandr: 1.7 -> 1.8
  pythonPackages.pyhepmc: fix build
  llvm-polly/clang-polly: use latest llvm
  apulse: 0.1.11.1 -> 0.1.12, cleanup
  factorio: experimental 0.17.14 → 0.17.16 (#58000)
  sequeler: 0.6.7 -> 0.6.8
  nasc: 0.5.1 -> 0.5.2
  ...