Prepublish is being deprecated in npm5

[mattdufeu]

Apparently "prepublish" is changing in npm5 to only run on publish - http://blog.lholmquist.org/npm-prepublish-changes/.

To keep this boilerplate working in npm5, it appears to be as simple as change "prepublish" in package.json to "prepare".

I can raise a PR if you like?

[juliancwirko]

Hmm, so is it possible to leave both for now? Or is it backwards compatible somehow?

[mattdufeu]

Prepare seems to work fine in npm4, not sure about 3.

[juliancwirko]

I think the deprecation is only about changing the logic of prepublish script and not removing it completly. And this is good because we need it only when publishing the lib. But of course I need to test it when rebuilding the boilerplate.