LIVEOAK-3: add in mongo referencing support.
Add an invalid request response for responders to send more types of error messages to clients.
Merge pull request #45 from mwringe/LIVEOAK-3

LIVEOAK-3: add in mongo referencing support.
LIVEOAK-3: remove un-needed dependency on the container which should not have been committed
Merge pull request #46 from mwringe/LIVEOAK-3

LIVEOAK-3: remove un-needed dependency on the container which should not...