SGI style: enable complex widget rendering

Was commented out for no obvious reason

This resolves issue #64.

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>
(cherry picked from commit 12c9e70bad)

src/styles/qsgistyle.cpp

@@ -1399,7 +1399,7 @@ void TQSGIStyle::drawComplexControl( ComplexControl control,
 	break;
 
     default:
-// 	TQMotifStyle::drawComplexControl( control, p, ceData, elementFlags, r, cg, flags, sub, subActive, opt, widget );
+ 	TQMotifStyle::drawComplexControl( control, p, ceData, elementFlags, r, cg, flags, sub, subActive, opt, widget );
 	break;
     }
 }