pythonpackages.dateutil: init dateutil at 2.2

dateutil_2.2 is required by the csvkit 0.9.1

pkgs/top-level/python-packages.nix

@@ -4909,6 +4909,27 @@ in modules // {
     };
   });
 
+  # csvkit 0.9.1 needs dateutil==2.2
+  dateutil_2_2 = buildPythonPackage (rec {
+    name = "dateutil-2.2";
+    disabled = isPy3k;
+
+    propagatedBuildInputs = with self; [ self.six ];
+
+    buildInputs = [ pkgs.glibcLocales ];
+
+    src = pkgs.fetchurl {
+      url = "mirror://pypi/p/python-dateutil/python-${name}.tar.gz";
+      sha256 = "0s74ad6r789810s10dxgvaf48ni6adac2icrdad34zxygqq6bj7f";
+    };
+
+    meta = {
+      description = "Powerful extensions to the standard datetime module";
+      homepage = http://pypi.python.org/pypi/python-dateutil;
+      license = "BSD-style";
+    };
+  });
+
   # Buildbot 0.8.7p1 needs dateutil==1.5
   dateutil_1_5 = buildPythonPackage (rec {
     name = "dateutil-1.5";
@@ -7034,7 +7055,7 @@ in modules // {
       license = licenses.lgpl3;
     };
   };
-		  
+
 
   pathtools = buildPythonPackage rec {
     name = "pathtools-${version}";