Use Nan 2.x API. Still need to fix NanAssignPersistent.
Use Nan 2.x API. Still need to fix NanAssignPersistent.

CasperTech/node-fs-ext,pmurias/node-fs-ext,ggreer/node-fs-ext,CasperTech/node-fs-ext,pmurias/node-fs-ext,ggreer/node-fs-ext,ggreer/node-fs-ext,CasperTech/node-fs-ext,baudehlo/node-fs-ext,CasperTech/node-fs-ext,baudehlo/node-fs-ext,baudehlo/node-fs-ext,pmurias/node-fs-ext,ggreer/node-fs-ext,pmurias/node-fs-ext