Hooks (WIP)
Hooks are hooked up
Merge remote branch 'origin/master'

Conflicts:
	crud/src/main/java/com/redhat/lightblue/hooks/CRUDHook.java
	crud/src/main/java/com/redhat/lightblue/hooks/Hooks.java
	crud/src/main/java/com/redhat/lightblue/mediator/OperationContext.java