issue  #286

Hi Tim,

just implemented the issue #286 for platforms, where it was possible
the most critical thing is, that it brakes the compatibility, since the Trade.getId() method returns a String and not a long value
another option would be to keep the old method and add a new one like getIdAsString or s.th. like that, but that would be pretty ugly...

feel free to pull it, would be a honour
BTW: very cool project!!! *thumbs up*
very clean structure, nice code style

cheers
andre