Minor change to SHOWNODE() routine, which is called from various
places. Change $short optional argument to a flags argument, and add a NOPERM flag, which allows display of a node to people without permission to view that node. The display is cut back to node type, and a couple of other things that are not private. I also added a section on the Interfaces of a node, using the interfaces table for the node, joined with the interface_types and interface_capabilities tables. This gives more specific information about a node then is possible using the generic node_types table.
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