Initial commit
alpha version 0.0.1
new features for v0.0.3

- added support for config files to quickly reuse the same config

- the token `$config` will be resolve to the path to the config file on disk

- added support for custom headers, which is useful for endpoints that
  require reverse proxy authentication via headers

- added support for LAN HTTP proxies that serve as the gateway for all
  HTTP traffic outside the LAN
v0.1.0 new features

- major refactoring for json-proxy to be both express middleware
  and offer a cli

- more robust configuration options, including fallback from
  hard coded config values, to command line options, to
  config file options, to environmental variables, to
  defaults

- implemented mocha unit test and jshint linting

- includes examples for both the cli and middleware