The idPrefix scheme used by subclasses of Uize.Widget has been refactored to enforce consistency and to make it easier to ascertain by looking at a node's id value what it's function is and which widget it serves.

The new syntax follows the form...

rootWidgetIdPrefix_childWidgetLevel1IdPrefix_childWidgetLevel2IdPrefix-nodeIdSuffix

or, for a root node (i.e. where the node id suffix is blank), just...

rootWidgetIdPrefix_childWidgetLevel1IdPrefix_childWidgetLevel2IdPrefix