Try linking the static Sleepycat lib into _bsddb.pyd.  Hard to say
whether this is a correct thing to do:

+ There are linker warnings (see PCbuild\readme.txt).
+ test_bsddb passes, in both release and debug builds now.
+ test_bsddb3 has several failures, but it did before too.

Also made pythoncore a dependency of the _bsddb project, updated
build instructions, added database conversion XXX to NEWS, and fiddled
the Windows installer accordingly.
diff --git a/Misc/NEWS b/Misc/NEWS
index 8fdd1f6..49977dc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -822,7 +822,9 @@
   improvement over the previous Berkeley DB 1.85, which had many
   bugs.
   XXX What are the licensing issues here?
-  XXX The debug Python still blows up (see PCbuild/readme.txt).
+  XXX If a user has a database created with a previous verion of
+  XXX     Python, what must they do to convert it?
+  XXX I'm still not sure how to link this thing (see PCbuild/readme.txt).
   XXX The version # is likely to change before 2.3a1.
 
 - The Windows distribution now ships with Tcl/Tk version 8.4.1 (it