Merge pull request #22 from Convey-Compliance/mongo-delphi-driver-build

Added mongo_cmd_create_user API
Fixed problem with concurrency and connection pooling
Added mongo_cmd_create_user API
Merge pull request #22 from Convey-Compliance/mongo-delphi-driver-build

Added mongo_cmd_create_user API
Merge pull request #23 from Convey-Compliance/service-bus-build

Fixed problem with connection pooling
Cleaned up acquire connection pool method. More elegant
Simplified login to acquire connections
Made code more robust in case server cuts the connection on us