Fix large-binary containing platform-package addition.

Adding the ios platform that contains a large binary file
got 100% CPU usage and took about an hour when unpacking
the file.

The latest NPM package has this fixed (probably in
release https://github.com/npm/npm/releases/tag/v1.4.13)

Related discussions:
https://github.com/npm/npm/issues/4738
https://github.com/npm/npm/issues/4955