DeprecationWarning: Buffer() (#391)
DeprecationWarning: Buffer() (#391)

After running `npm test` the log mentions a deprecation warning:

(node:12636) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsause the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

This fix should be in line with supporting Node 6/8 and other areas of the code are already using Buffer.from(...).
twilio/twilio-node