Get rid of relative imports in all unittests.  Now anything that
imports e.g. test_support must do so using an absolute package name
such as "import test.test_support" or "from test import test_support".

This also updates the README in Lib/test, and gets rid of the
duplicate data dirctory in Lib/test/data (replaced by
Lib/email/test/data).

Now Tim and Jack can have at it. :)
diff --git a/Lib/test/test_robotparser.py b/Lib/test/test_robotparser.py
index beec006..6a23b22 100644
--- a/Lib/test/test_robotparser.py
+++ b/Lib/test/test_robotparser.py
@@ -1,4 +1,5 @@
-import unittest, StringIO, robotparser, test_support
+import unittest, StringIO, robotparser
+from test import test_support
 
 class RobotTestCase(unittest.TestCase):
     def __init__(self, index, parser, url, good, agent):