Bug Fixes in KDE Base
Fix crash when a part misbehaves and doesn't create a widget.
E.g. I just got this
KonqFrame::attach: The part KWDocument(0x28f5100, name = "document_0") didn't create a widget!
Testcase: konqueror <some .doc document on http>
(possibly with a broken koffice/calligra installation...)
(cherry picked from commit 637c39ae98c7a78d8cb359cb247ce97038bd2bce)