Merge branch 'master' into staging-next

There ver very many conflicts, basically all due to
name -> pname+version.  Fortunately, almost everything was auto-resolved
by kdiff3, and for now I just fixed up a couple evaluation problems,
as verified by the tarball job.  There might be some fallback to these
conflicts, but I believe it should be minimal.

Hydra nixpkgs: ?compare=1538299

pkgs/tools/system/lr/default.nix

@@ -18,6 +18,6 @@ stdenv.mkDerivation rec {
     description = "List files recursively";
     license = licenses.mit;
     platforms = platforms.all;
-    maintainers = [ maintainers.globin ];
+    maintainers = [ ];
   };
 }