[IMP] update changelog

bzr revid: abo@openerp.com-20130213152124-1zd6j9zs4zgtw01a

doc/changelog.rst

@@ -10,3 +10,7 @@ Changelog
 - Removed support for `<terp>` root element in XML files.
 - Removed support for the non-openerp namespace (e.g. importing `tools` instead
   of `openerp.tools` in an addons).
+- Add a new type of exception that allows redirections:
+  openerp.exceptions.RedirectWarning.
+- Give a pair of new methods to res.config.settings and a helper to make them
+  easier to use: get_config_warning()