accountsservice: be consistent in naming (always two 's')

The package is (correctly) named 'accountsservice' (with two 's'), but
the attribute and expression path lacked one 's'. Fix it.

pkgs/development/libraries/accountsservice/default.nix

@@ -0,0 +1,27 @@
+{ stdenv, fetchurl, pkgconfig, glib, intltool, makeWrapper
+, libtool, gobjectIntrospection, polkit, systemd, coreutils }:
+
+stdenv.mkDerivation rec {
+  name = "accountsservice-0.6.35";
+  
+  src = fetchurl {
+    url = http://www.freedesktop.org/software/accountsservice/accountsservice-0.6.35.tar.xz;
+    sha256 = "0f1hzl6hw56xvwgmd4yvmdyj15xj1fafw45pzv3qarww7h0wg8b5";
+  };
+
+  buildInputs = [ pkgconfig glib intltool libtool makeWrapper
+                  gobjectIntrospection polkit systemd ];
+
+  configureFlags = [ "--with-systemdsystemunitdir=$(out)/etc/systemd/system"
+                     "--localstatedir=/var" ];
+
+  patches = [ ./no-create-dirs.patch ];
+  patchFlags = "-p0";
+  
+  preFixup = ''
+    wrapProgram "$out/libexec/accounts-daemon" \
+      --run "${coreutils}/bin/mkdir -p /var/lib/AccountsService/users" \
+      --run "${coreutils}/bin/mkdir -p /var/lib/AccountsService/icons"
+  '';
+
+}