Added missing zip_safe flag.

Updated doc.


git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@70023 62d5b8a3-27da-0310-9561-8e5933582275

zc.recipe.egg_/setup.py

@@ -23,4 +23,5 @@ setup(
                                     'custom = %s:Custom' % name,
                                     ]
                     },
+    zip_safe=False,
     )