Crypto NPM module deprecated

[cwill]

This package is still using the crypto package from npm, which has been replaced by a builtin module and is deprecated. It should be removed and the builtin one used instead to avoid security vulnerabilities.

[eli-darkly]

Hi - sorry this fell off the radar for a while. I've verified that the built-in module is present in all versions of Node that we support, so we'll make this change ASAP.

[eli-darkly]

Fixed in version 5.1.2. Thanks for bringing this to our attention.

[cwill]

Thanks!