Add support for Python 3.3.

CHANGES.txt

@@ -5,7 +5,7 @@ CHANGES
 4.0.1 (unreleased)
 ------------------
 
-- TBD
+- Added support for Python 3.3.
 
 4.0.0 (2012-06-06)
 ------------------

setup.py

@@ -68,6 +68,7 @@ setup(name='zope.proxy',
           'Programming Language :: Python :: 2.7',
           'Programming Language :: Python :: 3',
           'Programming Language :: Python :: 3.2',
+          'Programming Language :: Python :: 3.3',
           'Programming Language :: Python :: Implementation :: CPython',
           'Programming Language :: Python :: Implementation :: PyPy',
           'Natural Language :: English',

tox.ini

@@ -3,7 +3,7 @@ envlist =
 # Jython support pending 2.7 support, due 2012-07-15 or so.  See:
 # http://fwierzbicki.blogspot.com/2012/03/adconion-to-fund-jython-27.html
 #   py26,py27,py32,jython,pypy,coverage
-    py26,py27,py32,pypy,coverage,docs
+    py26,py27,py32,py33,pypy,coverage,docs
 
 [testenv]
 commands =