*** 0.04006 mode
-* add a loud warning that says that we're running in backcompat mode, and refers
- to the ::Manual::UpgradingFromV4 POD.
* preserve custom content from un-singularized Results and delete them when in
upgrade mode
-*** backcompat tests
-
-Need a comprehensive backcompat.t
-
*** Catalyst Helper
* Add 'upgrade=1' option that upgrades from both old S::L and old helper,