Extract superclass for pubsub processor, add actor spoofing checks
Merge branch 'actor-spoofing' of https://github.com/surevine/buddycloud-server-java into surevine-actor-spoofing

Conflicts:
	src/main/java/org/buddycloud/channelserver/utils/XMLConstants.java
Merge branch 'surevine-actor-spoofing'