Update for nan v1 API changes

Squashed commit of the following:

commit e1e42572e18d328d8864254fd678956eb5752b85
Author: duralog <funisher@gmail.com>
Date:   Thu May 8 19:56:11 2014 +0200

    support 0.8.x and 0.10.x and wait for nan-1.1.0

commit 944999ec39e76ff19fd34ba24b0c3d59bf1f39a2
Author: flames of love <mechanicofthesequence@gmail.com>
Date:   Thu May 8 19:34:42 2014 +0200

    update for latest nan changes

commit 3b062926353d3b8ac2347322746cbd20633b8cf5
Author: flames of love <mechanicofthesequence@gmail.com>
Date:   Tue May 6 17:05:03 2014 +0200

    remove GetPersistent .. not used

commit f2303c1800e8bb124759df54368601943b28f9fc
Author: flames of love <mechanicofthesequence@gmail.com>
Date:   Tue May 6 16:45:34 2014 +0200

    update for node v0.11.13

Closes #27.