expose module.parent as in node

[dominictarr]

This pr resolves browserify/browserify#976
It only makes the prelude 23 bytes longer, this will help more node modules work in the browser by default.

[dominictarr]

bump

[dominictarr]

really this should be merged because it makes browserify more consistent with node.

[terinjokes]

@dominictarr can you update this PR to point at another branch?

[dominictarr]

@terinjokes not sure I follow, do you want me to update this merge cleanly with current master?
which branch?

[terinjokes]

@dominictarr I'm sorry, I was unclear. This PR points at your fork's master branch, which you've since pushed changes to rename it to nodepack.

Without those changes, this looks to apply cleanly. I don't mind cherrypicking, so not too much of a problem.

[dominictarr]

oh, I see, sorry about that. I'll fix this.

[dominictarr]

okay I refactored to this branch https://github.com/dominictarr/nodepack/tree/parent
but turns out browser-pack has changed a lot since I did this so it' doesn't merge anymore
(i tried but tests break)