Simplify the version again

doc/CHANGES.rst

@@ -5,8 +5,8 @@ This file contains change information for the current Zope release.
 Change information for previous versions of Zope can be found at
 http://docs.zope.org/zope2/releases/.
 
-4.0.0a1 (unreleased)
---------------------
+4.0a1 (unreleased)
+------------------
 
 Bugs Fixed
 ++++++++++

setup.py

@@ -23,7 +23,7 @@ if sys.platform[:3].lower() == "win":
 
 
 setup(name='Zope2',
-    version='4.0.0a1.dev',
+    version='4.0a1.dev',
     url='http://zope2.zope.org',
     license='ZPL 2.1',
     description='Zope2 application server / web framework',