Initial support for MongoDb adapters
based on initial work done by Amol Nayak
INT-2612b Add namespace support
Add entityClass and expectSingleResult attribiutes to MongoDbMessageSource
INT-2612 Polishing
Mostly JavaDocs and a few asserts; plus renamed mongodb-template to
mongo-template.
INT-2612 Remove 'store-' Prefix from Elements
INT-2612 Polish Tests
Add tests for mongo-converter pass and fail when template present
INT-2612 Add missing files
INT-2612 Polishing
INT-2612 Add @MongoDbAvailable to parser tests
INT-2612b Add dedicated parser tests
bd51b3ee7a