Merge branch 'master' into staging

* master: (271 commits)
  pysmbc: clarify license
  pysmbc: fix license
  bazel: 0.5.4 -> 0.6.0 (#29990)
  googler: init at 3.3
  go: declare support for aarch64
  firefox-beta-bin: 56.0b5 -> 57.0b4
  spotify: 1.0.64.401.g9d720389-21 -> 1.0.64.407.g9bd02c2d-26
  gogs: 0.11.19 -> 0.11.29
  grafana: 4.5.1 -> 4.5.2
  mopidy-iris: 3.4.1 -> 3.4.9
  nextcloud: 12.0.2 -> 12.0.3
  haskell-json-autotype: jailbreak to fix build within LTS 9.x
  kore: fix up
  kore: init at 2.0.0
  glusterfs service: fix issues with useRpcbind
  tig: 2.2.2 -> 2.3.0
  haskell-hspec-core: enable test suite again
  hackage-packages.nix: automatic Haskell package set update
  librsvg: fix thumbnailer path
  awscli: 1.11.108 -> 1.11.162
  ...

pkgs/tools/inputmethods/ibus/default.nix

@@ -50,6 +50,12 @@ let
   };
   pyEnv = python3.buildEnv.override {
     extraLibs = [ python3.pkgs.pygobject3 ];
+
+    # ImportError: No module named site
+    postBuild = ''
+      makeWrapper '${glib.dev}/bin/glib-genmarshal' "$out"/bin/glib-genmarshal \
+        --unset PYTHONPATH
+    '';
   };
 in stdenv.mkDerivation rec {
   name = "ibus-${version}";