Avoid divide by zero in layoutContainer() when Container does not have child. Submitted by Kero van Gelder <kero@d4050.upc-d.chello.nl>.
Avoid divide by zero in layoutContainer() when Container does not have
child.
Submitted by Kero van Gelder <kero@d4050.upc-d.chello.nl>.

kaffe/kaffe,kaffe/kaffe,kaffe/kaffe,kaffe/kaffe,kaffe/kaffe