removed synchronized() blocks to allow for parallel execution
added support for graceful shutdown for layer2 load balancers
fix typo
fix of lacking } in @Value injection
Issue #17, objects findable by unsanitized key
Issue #7, allow mnt-domains authentication when deleting Domain object
Added whois REST api test cases.
Merge branch 'upstream' into upstream-rdap

* upstream:
  Added whois REST api test cases.
  Issue #7, allow mnt-domains authentication when deleting Domain object
  Issue #17, objects findable by unsanitized key
  fix of lacking } in @Value injection
  fix typo
  added support for graceful shutdown for layer2 load balancers
  removed synchronized() blocks to allow for parallel execution