Expose a means of passing node6 onto dependencies

[hughsk]

For when using node6 in application code alongside packages that expect you to run node --harmony. Maybe this?

// just this package
require('node6')(__dirname)

// also these packages
require('node6')(__dirname, 'co')
require('node6')(__dirname, 'co-fs')

// just do everything in this package's node_modules tree
require('node6')(__dirname, true)

// or everything in co-fs
require('node6')(__dirname, 'co-fs', true)

koa, co and their ecosystem of packages all fall down otherwise, which would be a shame considering there's already been a lot of good stuff to come out of there.

[timoxley]

Seems very invasive. Node6 should fill the role of polyfill. Maybe a package.json mapping?

[timoxley]

Actually this isnt that bad. When I read this I thought it was a new require syntax?