I am glad to announce that I have spent some time on Spec, and introduce to new models :)

1) NewListModel

This is the spec model for the new implementation of the list. 

It adds some cool features like a header, a real lazy display implementation, a better mechanism for drag and dropping and few more :)

The spec model almost cover everything, and is backward compatible with ListComposableModel :)

It means you can switch by just changing the instantiateModels method.

Soon I will officially migrate to the NewListModel as default, but right now both exists.

2) AlainTreeModel

This is the spec model for MorphTreeMorph (the name is a tribute to Alain Plantec ^^).

Every one (should) know that MorphTreeMorph is *a lot* more powerful and flexible that PluggableTreeMorph, so I encourage every one to use it :)

Once again, the api is the same, so AlainTreeModel is fully compatible with TreeModel.

And once again, I will turn it into the default TreeModel soon, but I give you a bit of time to chase bugs :)

If you want to try the new models, I will be glad to collect your feedbacks, to help you as much as I can, and to fix the remaining bugs :)