Roof with single hip

[fsalla (Francesc Salla)]

@mark10

If you run the command with a VA object initially selected, it just exits. You have to run the command with nothing selected, then select a VA object etc.

I let you know we have changed the behavior of this command so it works with pre-selected VisualARQ objects in version 2.8.5: VisualARQ 2 - Version 2.8.5 released