Upgrade docker to 1.1.2 and add docker module

This version of module has disabled socketActivation, because until
nixos upgrade systemd to at least 214, systemd does not support
SocketGroup. So socket is created with "root" group when
socketActivation enabled. Should be fixed as soon as systemd upgraded.

Includes changes from #3015 and supersedes #3028

pkgs/applications/virtualization/docker/default.nix

@@ -3,24 +3,21 @@ btrfsProgs, iptables, bash}:
 
 stdenv.mkDerivation rec {
   name = "docker-${version}";
-  version = "0.10.0";
+  version = "1.1.2";
 
   src = fetchurl {
     url = "https://github.com/dotcloud/docker/archive/v${version}.tar.gz";
-    sha256 = "14gmx119hd3j0c6rbks2mm83hk46s5wnnyvj8rhn25h0yp39pm5q";
+    sha256 = "1pa6k3gx940ap3r96xdry6apzkm0ymqra92b2mrp25b25264cqcy";
   };
 
-  phases = ["unpackPhase" "preBuild" "buildPhase" "installPhase"];
-
   buildInputs = [ makeWrapper go sqlite lxc iproute bridge_utils devicemapper btrfsProgs iptables ];
 
-  preBuild = ''
-    patchShebangs ./hack
-  '';
+  dontStrip = true;
 
   buildPhase = ''
+    patchShebangs ./hack
     export AUTO_GOPATH=1
-    export DOCKER_GITCOMMIT="867b2a90c228f62cdcd44907ceef279a2d8f1ac5"
+    export DOCKER_GITCOMMIT="d84a070"
     ./hack/make.sh dynbinary
   '';
 
@@ -41,7 +38,7 @@ stdenv.mkDerivation rec {
     homepage = http://www.docker.io/;
     description = "An open source project to pack, ship and run any application as a lightweight container";
     license = licenses.asl20;
-    maintainers = with maintainers; [ offline ];
+    maintainers = with maintainers; [ offline tailhook ];
     platforms = platforms.linux;
   };
 }