Start migrating panels to also implement new hooks.
Migrate a few more panels to the new system.
Don't double bind the routing filter.
Expand data stored by panels.

Expand the data stored by the panels to include other useful information
like the button title and element that should be rendered. This will let
the new toolbar renderer be able to do its work without having to
construct panel instances.
Add tests and stub files for js based toolbar.
Element names should include the plugins the elements are in.
Skeleton panel controllers and panel views.

This will need to be expanded before the toolbar can be made more real.
Fix fatal errors in config setup.
We don't need to pre-seed the request with an id anymore.

We do need the ID from the inserted row though. Use that to seed data
for the toolbar.
Fix up controllers, panels, element names and other things.

It is now possible to get non-functional toolbar data but not panels
using the controllers.
Merge pull request #195 from cakephp/convert-panels

Update panels to use new panel saving features, start building new toolbar skeleton