Make TorqueBox compatible with latest Polyglot which inculdes modularized polyglot-web and polyglot-core.
Depend on polyglot-core module.zip
Rebase against incremental of polyglot.  Better pin the version of stilts-stomp-client.
Add upstream to plugin repos, for assembly descriptors
Add polyglot-core module to assembly dependencies.

Conflicts:
	pom.xml
Wire up a load/store for STOMP session data, to allow the TorqueBox ServletStore
to perform its machinations on the web-session provided to Stomplets (in the case
of a mixed web+stomp app), allowing complex ruby objects stored in the session
to be available.

Conflicts:
	pom.xml
polyglot's BuildInfo constructor now takes two args
Guard against no subscription in on_unsubscribe

Don't assume subscribe_to has been called
on a subscriber when we're unsubscribing it.