Make docs & PyPI list separate locations for 0.6 and 0.7 development

versions.

--HG--
branch : setuptools-0.6
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/branches/setuptools-0.6%4045398

setuptools.txt

@@ -63,7 +63,10 @@ Feature Highlights:
   extensions, using simple "entry points" declared in a project's setup script.
 
 In addition to the PyPI downloads, the development version of ``setuptools``
-is available from the `Python SVN sandbox`_.
+is available from the `Python SVN sandbox`_, and in-development versions of the
+`0.6 branch`_ are available as well.
+
+.. _0.6 branch: http://svn.python.org/projects/sandbox/branches/setuptools-0.6/#egg=setuptools-dev06
 
 .. _Python SVN sandbox: http://svn.python.org/projects/sandbox/trunk/setuptools/#egg=setuptools-dev