After a second look all the "enyo.*Arranger" must not be removed but renamed.

For example, for "enyo.CardArranger", the dropped kind is an enyo.Panels with an arrangerKind set to "CardArranger".

So, we should probably set the "name" to "enyo.Panels(CardArranger)"
NB:  i'm not satistied with naming. Feel to propose something better.