plan9port: 20140306 -> 2015-06-29

We were already using snapshots, but development moved to github.
Also add "9" to $out/bin as it is the recommended practice, see
install.txt

pkgs/tools/system/plan9port/default.nix

@@ -1,10 +1,17 @@
-{stdenv, fetchurl, which, libX11, libXt, fontconfig
+{stdenv, fetchgit, which, libX11, libXt, fontconfig
 , xproto ? null
 , xextproto ? null
 , libXext ? null }:
 
 stdenv.mkDerivation rec {
-  name = "plan9port-20140306";
+  name = "plan9port-2015-06-29";
+
+  src = fetchgit {
+    # Latest, same as on github, google code is old
+    url = "https://plan9port.googlesource.com/plan9";
+    rev = "71de840";
+    sha256 = "1ffece7c0a5775a8bde6a0618c7ae3da4048449008a19e6623e8e5553f133b4c";
+  };
 
   patches = [ ./fontsrv.patch ];
   postPatch =
@@ -15,13 +22,6 @@ stdenv.mkDerivation rec {
 
   builder = ./builder.sh;
 
-  src = fetchurl {
-    url = "https://plan9port.googlecode.com/files/${name}.tgz";
-    # Google code is much faster than swtch
-    # url = "http://swtch.com/plan9port/${name}.tgz";
-    sha256 = "1sza12j3db7i54r3pzli8wmby6aiyzmyfj8w0nidmawkwv6jdf6b";
-  };
-
   NIX_LDFLAGS="-lgcc_s";
   buildInputs = stdenv.lib.optionals (!stdenv.isDarwin) [ which libX11 fontconfig xproto libXt xextproto libXext ];
 
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
     homepage = "http://swtch.com/plan9port/";
     description = "Plan 9 from User Space";
     license = licenses.lpl-102;
-    maintainers = [ stdenv.lib.maintainers.ftrvxmtrx ];
+    maintainers = with stdenv.lib.maintainers; [ ftrvxmtrx kovirobi ];
     platforms = platforms.unix;
   };