Updated changelog

--HG--
branch : distribute
extra : rebase_source : 2fda957d09f002072e1eea759be2e8fd98ebca5b

CHANGES.txt

@@ -6,6 +6,9 @@ CHANGES
 0.6.5
 -----
 
+* When run from within buildout, no attempt is made to modify an existing
+  setuptools egg, whether in a shared egg directory or a system setuptools.
+
 * Fixed a hole in sandboxing allowing builtin file to write outside of
   the sandbox.