Use Notification client to notify circuir related information to sdn module.
Merge branch 'ofertie/monitoring' of https://github.com/dana-i2cat/opennaas into ofertie/sdn-notification
Username saved in ThreadLocal, so nclprovisioner can read it.
Merge branch 'ofertie/monitoring' of https://github.com/dana-i2cat/opennaas into ofertie/sdn-notification

Conflicts:
	extensions/bundles/ofertie.ncl/src/main/java/org/opennaas/extensions/ofertie/ncl/provisioner/NCLProvisioner.java
Rename deallocation method and modify update method.
Merge pull request #964 from adrian-rosello/ofertie/sdn-notification

Feature/sdn-notification