LIVEOAK-253 Fixing bug with JSON decoding when property has value 'null'. Fix update of URIPolicy and DroolsPolicy
LIVEOAK-252: fix issue where we were reading from a null object after the resource is deleted (Need to return the object back as part of the delete operation).
Merge pull request #148 from mwringe/LIVEOAK-252

LIVEOAK-252: Fix NPE when mongo resource is deleted.
LIVEOAK-238: Use a factory method to create a commonly configured ObjectMapper. Increases consistency between how JSON files are handled.
Merge pull request #149 from mwringe/LIVEOAK-238

LIVEOAK-238