This example demonstrates how to clean up per-client objects through
the use of sessions.

When the client starts, a session object is created through which all
per-client objects are created. The session object's timestamp must be
refreshed by the client on a periodic basis otherwise it will be
destroyed. Once the session is destroyed, whether by the client
destroying the session upon termination or due to a timeout, all
per-client objects are automatically cleaned up by the session object.

The Ice extension for Ruby currently supports only client-side
functionality, therefore you must use a server from any other language
mapping.

After starting the server, run the Ruby client:

$ ruby Client.rb
