I've carefully audited all callers of AtomView::GetHashCode()
and changed them to AtomView::GetHandle().GetHashCode() where
required.

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2259 5a81b35b-ba03-0410-adc8-b2c5c5119f08