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. :)

Lib/test/test_profilehooks.py

@@ -1,10 +1,8 @@
-from test_support import TestFailed
-
 import pprint
 import sys
 import unittest
 
-import test_support
+from test import test_support
 
 
 class HookWatcher:
@@ -329,9 +327,13 @@ protect_ident = ident(protect)
 
 
 def capture_events(callable, p=None):
-    try: sys.setprofile()
-    except TypeError: pass
-    else: raise TestFailed, 'sys.setprofile() did not raise TypeError'
+    try:
+        sys.setprofile()
+    except TypeError:
+        pass
+    else:
+        raise test_support.TestFailed(
+            'sys.setprofile() did not raise TypeError')
 
     if p is None:
         p = HookWatcher()