allow non string values to be passed for values

[lee-elenbaas]

allows for parsing of arrays like: ['--param', 15]

[nexdrew]

Before we review this, would you mind describing the use-case(s) this will help solve apart from doing something like the following?

var parse = require('yargs-parser')
parse(['-f', 11, '--zoom', 55].join(' ')) // <-- array to single string
parse(['-f', 11, '--zoom', 55].map(String)) // <-- array of strings

EDIT: Note that I'm not opposed to this idea, but I want to make sure that:

1. It's clear that this is a worthwhile change
2. We implement this as robustly as possible (I think I see a few problems with your changes)

Thanks for offering this, btw! Looking forward to your thoughts and discussion.

[bcoe]

@lee-elenbaas I think I'd rather keep the explicit contract that yargs-parser expects an array of strings, does @nexdrew's suggestion of:

parse(['-f', 11, '--zoom', 55].map(String))

provide a reasonable workaround for you?

[lee-elenbaas]

It is the workaround i am currently using - at the very least - that contract should be documented

[nexdrew]

at the very least - that contract should be documented

@lee-elenbaas Sounds reasonable to me. Thanks for bringing this up and for your understanding in this matter!