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_cmath.py b/Lib/test/test_cmath.py
index 509c739..c409699 100755
--- a/Lib/test/test_cmath.py
+++ b/Lib/test/test_cmath.py
@@ -3,7 +3,7 @@
     Roger E. Masse
 """
 import cmath
-from test_support import verbose
+from test.test_support import verbose
 
 testdict = {'acos' : 1.0,
             'acosh' : 1.0,