Imported from archive.

* LICENSE, mudpy, mudpy.py: Updated copyright notices for 2006.

* mudpy, mudpy.conf (internal:process), mudpy.py (create_pidfile)
(daemonize, remove_pidfile): Implemented optional
fork-and-disassociate daemon capability.

* mudpy.conf (internal:network), mudpy.py
(Universe.initialize_server_socket): Now, if the host facet is
unset, it defaults to 0.0.0.0 (listen on all available IP
interfaces).

* mudpy.py (Element.clean_contents, Element.reload)
(Element.update_location, Universe.load, reload_data): Additional
Element methods to clean up data file reloading.
(sighook): Added a signal handler to interpret hangup as if an admin
had executed the reload command, and term as if the halt command had
been issued.