Eliminate all references to VR::msg and VR::Dialog module. Use new alert() method instead.

[Beagle123]

I'm phasing out the use of all message Dialogs. They're really useless. I wrote an excellent method called alert() that can be used anywhere in place of a dialog with much less code.

There is a complete tutorial in the examples folder called alert_box. Click "Open Project" and try it.