Now building and passing tests locally in node v0.10.40 v0.12.7 and
v4.1.1. Other modules would not build at node lower than v0.10, so I
stopped there.
So apparently Nan v2 has removed Handle and uses Local instead. Not
sure wtf that’s all about. I have no idea if this works, but it builds
in both node v4.1.1 and v0.12.7 and passes the included tests in both.