QDialog not receiving events

[sp]

As a result of a late release decision to force the dialog to have a wrapper, it looks like I neglected to make sure the events attached to the dialog were going to the wrapper. This is only a problem with the QDialog_* events.

To fix this, I had to change actions to use JqGetControlId?, which means putting this function in QControl so all controls have that. Once we do that, we no longer need it to be in all the Gen classes, its just redundant there, so I changed the control generation to remove that.

[vakopian]

(In [1454]) Fixes #826