add license text for inclusion in the release package

get rid of links to files that aren't in Zope 2

ZopePublicLicense.txt

+Zope Public License (ZPL) Version 2.1
+-------------------------------------
+
+A copyright notice accompanies this license document that
+identifies the copyright holders.
+
+This license has been certified as open source. It has also
+been designated as GPL compatible by the Free Software
+Foundation (FSF).
+
+Redistribution and use in source and binary forms, with or
+without modification, are permitted provided that the
+following conditions are met:
+
+1. Redistributions in source code must retain the
+   accompanying copyright notice, this list of conditions,
+   and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the accompanying
+   copyright notice, this list of conditions, and the
+   following disclaimer in the documentation and/or other
+   materials provided with the distribution.
+
+3. Names of the copyright holders must not be used to
+   endorse or promote products derived from this software
+   without prior written permission from the copyright
+   holders.
+
+4. The right to distribute this software or to use it for
+   any purpose does not give you the right to use
+   Servicemarks (sm) or Trademarks (tm) of the copyright
+   holders. Use of them is covered by separate agreement
+   with the copyright holders.
+
+5. If any files are modified, you must cause the modified
+   files to carry prominent notices stating that you changed
+   the files and the date of any change.
+
+Disclaimer
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS''
+  AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
+  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+  AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+  NO EVENT SHALL THE COPYRIGHT HOLDERS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+  OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+  DAMAGE.

releases/Zope2/PACKAGE.cfg

 <load>
+  ZopePublicLicense.txt svn://svn.zope.org/repos/main/Zope/tags/*/ZopePublicLicense.txt
   bin/mkzopeinstance.py svn://svn.zope.org/repos/main/Zope/tags/*/utilities/mkzopeinstance.py
   bin/mkzeoinstance.py  svn://svn.zope.org/repos/main/Zope/tags/*/utilities/mkzeoinstance.py
   doc                   svn://svn.zope.org/repos/main/Zope/tags/*/doc/
@@ -6,8 +7,6 @@
 </load>
 
 <distribution>
-  LICENSES.txt
-  README.txt
   ZopePublicLicense.txt
   test.py
 </distribution>