This is a simple error handling function to help error handling. It defines a list of error codes and messages. This is useful for APIs where an error code can be returned as part of a JSON/XML message.

This is being installed as a git module as follows: https://npmjs.org/doc/install.html http://stackoverflow.com/questions/10386310/how-to-install-a-private-npm-module-without-my-own-registry