The applications that use this dialog (kmail/kjots/kres-migrator)
call infoDialog->hasError() after the app.exec() call.
With the deleteLater() call, this would imply that the dialog has
already been deleted at this point. So we just 'leak' the dialog,
the application is terminated at this point anyway.

svn path=/trunk/KDE/kdepim/runtime/; revision=1200805