OGM-506 Establishing user-facing OgmSession and NoSqlQuery contracts
OGM-506 Allowing datastores to expose specific session-level API
OGM-506 Allowing to pass process queries in native, non-String based representations
OGM-506 Some clean-up
OGM-506 Adding support for native DBObject queries for MongoDB
OGM-506 Unifying query execution for MongoDB, getting rid of specific MongoDBQueryImpl
OGM-506 Support for specifying projections for MongoDB native queries