The RootClass class, which dangled like a vestigial appendage on the code of the Uize module, has been neatly tucked away.

Structurally, the code in the RootClass class has been folded into the implementation for the Uize base class. It used to be that the Uize class was a subclass of RootClass, a class which provided no more than a simple inheritance mechanism. This class was never used on its own. Consolidating this code into the Uize class' code reduced the scrunched size of the Uize module by almost 1KB, since the scrunched identifier prefix for the Uize class could be reduced from a_ to just an underscore. Moreover, there is now one less link in the inheritance chain for all subclasses of the Uize base class, which should provide a small performance benefit.