Multi Level Menus Feature Developement

[simplycrazy]

It's probably fairly common as we are going from a flat to nested menu.

use a different call for the new nested menu, leave the old one in place that builds the old 'flat' menu... then people can upgrade their site to the new menu at their leisure. deprecate it (the 'old' way) prior to 4.0 release, and remove it for 4.0, leaving only nested menu.