Support iojs 3.0.0

[jbergstroem]

Breaks while compiling -- tried upgrading to nan 2.0.0. There is some api changes forcing a refactor. If no one else has time I can have a look at this in a week.

[haoxins]

waiting for this issue to be fixed? nodejs/nan#389

[defunctzombie]

Good to know about that one. Certainly will give these projects some time to bake. I understand folks want to test and upgrade quickly but some of the API changes will take a refactor. Without a migration guide for NaN 1.x to 2.x it will be slower going.

[nicolasgramlich]

They just fixed it: nodejs/nan#389 (comment) the commit he referenced is part of the 2.0.5 tag: nodejs/nan@98d38c1

[jbergstroem]

@defunctzombie nan async pi works as a pretty good example for porting/implementing nan 2.0.0+.

Edit: Also, here's node-ffi's effort.

[defunctzombie]

PR here: #324

Everyone who is interested please test this out and report issues.

[defunctzombie]

Released in 0.8.5