Removed the schema print clutter from the integration test

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>
Added UUID special marshaling case for uuid and named-uuid

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>
Fixed a few notations to get basic Transact operation to work end-to-end

With special json marshaling code in place for special types, basic Transact operation works
for multiple operations.

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>