A simple real-time web chat built in Opa.

BUILDING
 make

LAUNCHING
On one server:
 ./opa_chat.exe
(launches on port 8080)

or
 ./opa_chat.exe --server-port nnnn

On many servers:
  opa-cloud opa-chat.exe --host localhost --host me@my_second_server --host me@my_third_server

Users connecting to the launch server will be load-balanced among servers. Users
connecting to one server can chat transparently with users connecting to other servers.