"addedParameters" is not a valid swagger param

[anthonybudd]

This package is adding a param to each route called "addedParameters" this param is not in the swagger speck and is causing my swagger files to be marked as invalid (when using http://editor.swagger.io/)

Can this be either removed or disable-able using an option to swagger.initialise(app, options)?

[eXigentCoder]

I'm quite swamped at the moment but am open to a PR if you have some time?