etcd: upgrade server and ctl

pkgs/servers/etcd/default.nix

@@ -1,7 +1,7 @@
 { stdenv, lib, go, fetchurl, fetchgit, fetchhg, fetchbzr, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
-  version = "0.5.0-alpha.4";
+  version = "2.0.0-rc.1";
   name = "etcd-${version}";
 
   src = import ./deps.nix {

pkgs/servers/etcd/deps.nix

@@ -8,8 +8,8 @@ let
       src = fetchFromGitHub {
         owner = "coreos";
         repo = "etcd";
-        rev = "d01d6119e54f729f54e9776ad5729277fcf38668";
-        sha256 = "0h9d6rc8yx7vyv2ggvzsddyng03pjhyb7avm9wrc805qr7p8nhns";
+        rev = "221abdcb3b755b36d1e7d70149f6de3450351619";
+        sha256 = "1wkd238ap9gp5irrb3f6nnh83rzizwfrfac76j0dvqdka35l247k";
       };
     }
   ];