Hi Eric,
We were just discussing support for Haxe 3 the other day. We've had a couple of patches submitted with Haxe 2.11/3 fixes, but haven't yet looked at bringing all our libraries up to date as our client projects currently target 2.10. Once SVN has stabilised (when we have an RC) we'll make sure everything is compatible.
In the meantime, feel free to submit a pull request on anything you've fixed :)
Best,
David