ADD uriParams parameter to mongoUpdateContext()
ADD !exist filter at mongoUpdateContext() (not working, only for Ken feedback)
FIX compilation bug in previous commit, functionality complete (unit & harness test on the way)
ADD unit test for not exist filtering in mongoUpdateContext functionality
ADD test harness to cover the POST/PUT/DELETE ?!exist=entity::type functionality
FIX issues raised during code review
Update MongoCommonUpdate.cpp
Merge pull request #600 from telefonicaid/hardening/exist_type_for_delete_put_post

!?exist=entity::type for PUT/POST/DELETE on entity ID URL