Node 0.10.28 (no fs changes)
Node 0.11.13 (deal with binding.FSInitialize)

In order to support both v0.11.13 and older v0.11 releases, this includes a slightly modified version of the fs module from v0.11.13.  In the modified version, binding.FSInitialize is only called if it exists (which it doesn't prior to v0.11.13).