#8 Put in JNDI support for ARMI

[Bobby Martin]

Right now, the key to identify instances is: their
server IP, server port, interface they implement, and
an incremented ID. Obviously, this is unweildy. It is
less unweildy for singletons, since the ID is 0, but it
is still uncomfortable.

We don't really lose anything in terms of performance
by also sharing objects out via JNDI, or at least
making it easy to share an object through JNDI. Then
objects can be named like the are in RMI. Also, you
don't have to know where the object lives to find it;
you only have to know where the JNDI lookup server is.