Error Throws

[coguy450]

We are using the 3scale node module for our production environment. During the outage on Dec 6, our node servers crashed with the error:
] /usr/src/app/node_modules/3scale/lib/client.js:280
throw "[Client::authrep] Server Error Code: " + response.statusCode;]
^
[Client::authrep] Server Error Code: 503

We'd like to prevent future crashes. In looking at the node documentation, I found the following documentation helpful (https://nodejs.org/api/errors.html), they recommend not using try/catch throws in these types of apis

[mpguerra]

@picsoung would you be able to take a look at this?