[Libxmlplusplus-general] Node::remove_child() should delete the Node

[murrayc t-online de (Murray Cumming)]

Nodes and attributes should only be created by the libxml++ interfaces,
so libxml++ should delete Nodes that it forgets about. So
Node::remove_child(Node* node) should delete the node as well as
removing it from it's internal list. 

Any objection to me committing this, and a similar fix for
remove_attribute(), along with reference documentation?

-- 
Murray Cumming
murray usa net
www.murrayc.com