update publication data to match expectations

(equivalent to revision 25293 on the ZODB 3.3 branch, but not a merge, since
the files were added separately after the branch was made)

releases/ZODB3/PUBLICATION.cfg

 Metadata-version: 1.0
 Name: ZODB3
-License: ZPL 2
+License: ZPL 2.1
+Home-page: http://www.zope.org/Wikis/ZODB
 Summary: Zope Object Database: object database and persistence
 Description:
         The Zope Object Database provides an object-oriented database
@@ -11,9 +12,7 @@ Description:
         transaction support, and undo.
 Maintainer: ZODB Developers
 Maintainer-email: zodb-dev@zope.org
-Platform: Linux
-Platform: Unix
-Platform: Windows
+Platform: any
 Classifier: Development Status :: 3 - Alpha
 Classifier: Intended Audience :: Developers
 Classifier: License :: OSI Approved :: Zope Public License