quazip: Use qt instead of qt5 for refering to Qt.

Qt 5 is passed via all-packages.nix, so it doesn't look too odd if you
want to build against qt4 instead. Before you'd have to use something
like:

quazip.override { qt5 = qt4; }

Now, it is:

quazip.override { qt = qt4; }

Signed-off-by: aszlig <[e-mail]>

pkgs/development/libraries/quazip/default.nix

···
-{ fetchurl, stdenv, zip, zlib, qt5 }:
+{ fetchurl, stdenv, zip, zlib, qt }:
 
 stdenv.mkDerivation rec {
   name = "quazip-0.7";
···
 
   installFlags = "INSTALL_ROOT=$(out)";
 
-  buildInputs = [ zlib qt5 ];
+  buildInputs = [ zlib qt ];
 
   meta = {
     description = "Provides access to ZIP archives from Qt programs";

pkgs/top-level/all-packages.nix

···
 
   qoauth = callPackage ../development/libraries/qoauth { };
 
-  quazip = callPackage ../development/libraries/quazip { };
+  quazip = callPackage ../development/libraries/quazip {
+    qt = qt5;
+  };
 
   qt3 = callPackage ../development/libraries/qt-3 {
     openglSupport = mesaSupported;