Add ServiceInstance state to the Introspect

Change-Id: I533a4c59390f8bca8bc730b2f4152bc7ff906ee5
Fix typo in the LOG messages

Change-Id: Ide0d1aa0b251d3f39465d10097633130637c2f89
Merge pull request #12 from safchain/service_instance

Add ServiceInstance state to the Introspect