Provide overload/parameter for QMetaObject::connectSlotsByName() that handles the object passed in as well.

QMetaObject::connectSlotsByName() as generated by uic does not handle slots of the form widget itself since only child objects of the object passed in (form) are handled. This cannot be easily fixed in uic since form->parent() might not exist or might have lots of other children at the time of calling. Alternatively, provide an overload working only on the single QObject passed in which will be called for the form as well.