SL Backcompat Plan:
-*** 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
+* make use_namespaces the default, and upgrade to it properly
*** Catalyst Helper