Moved some stuff

iLynx.Serialization is now a separate assembly.
iLynx.Configuration is now a separate assembly.
(Both depend on iLynx.Common, iLynx.Configuration also depends on
iLynx.Serialization).
Updated references in the Chatter projects
CredentialAuthenticationService should now send a "DisconnectCommand"
when a client fails authentication.
MessageServer should Disconnect a client if it receives a
"DisconnectCommand" via the Server command bus (IBus<IServerCommand>).