Temporarily (?) revert deletion of qt widget from sip
Temporarily (?) revert deletion of qt widget from sip

Found a potential issue with sip deletion and some dialog boxes.
Reverting to deleteLater() while this is sorted out.  Also, there
is some question about the best way to import sip.

ejeschke/ginga,naojsoft/ginga,naojsoft/ginga,naojsoft/ginga,ejeschke/ginga,ejeschke/ginga