Make a new urllib package .

It consists of code from urllib, urllib2, urlparse, and robotparser.
The old modules have all been removed.  The new package has five
submodules: urllib.parse, urllib.request, urllib.response,
urllib.error, and urllib.robotparser.  The urllib.request.urlopen()
function uses the url opener from urllib2.

Note that the unittests have not been renamed for the
beta, but they will be renamed in the future.

Joint work with Senthil Kumaran.
diff --git a/Lib/cgi.py b/Lib/cgi.py
index 5b8e40f..d0a2c61 100755
--- a/Lib/cgi.py
+++ b/Lib/cgi.py
@@ -35,7 +35,7 @@
 from io import StringIO
 import sys
 import os
-import urllib
+import urllib.parse
 import email.parser
 
 __all__ = ["MiniFieldStorage", "FieldStorage",
@@ -216,8 +216,8 @@
             else:
                 continue
         if len(nv[1]) or keep_blank_values:
-            name = urllib.unquote(nv[0].replace('+', ' '))
-            value = urllib.unquote(nv[1].replace('+', ' '))
+            name = urllib.parse.unquote(nv[0].replace('+', ' '))
+            value = urllib.parse.unquote(nv[1].replace('+', ' '))
             r.append((name, value))
 
     return r