SRV.7.7.2 compliance and Weld-related serialization fix

Send HttpSessionActivationListener events if session will be replicated or stored in write-through/back cache store.

Fix recurrence of "Singleton not set for ModuleClassLoader ... This means that you are trying to access a weld deployment with a Thread Context ClassLoader that is not associated with the deployment." errors.  Apparently Weld 2.0 still needs a specific TCCL set when serializing/deserializing state.