Recovering the original qt/memetalk object from qt.

...preserving the actual _delegate/class of the instance created. ie:

class QWidget { //the qt binding
}

class A < QWidget {
}

class B < A {
}

b = B.new();

//...put focus on `b` widget.

x = QApplication.focusWidget();
x == b; // true
Mirror.vtFor(x) == B; // true
Beginning implementation of ModuleExplorer's operations.

-Added a status bar and mini buffer to it.
-Simple undo/redo command history

Implemented the following operations:

(a) Module renaming.
(b) Adding module function.
(c) Reming module function.