WIP Provide npmjs registry provisioning

WIP!

/cc @NickHeiner 

## Users
* `npm install angular-translate` should now only load itself without any event.

## Developers
* `npm install` should invoke prepublish because it is locally
* `npm run-script shipit` does all steps except `npm publish` incl. changelog

## CI
* Should be covered: well do only headless tests (because of npm test). Think we should introduce a new config for CI?
If you want to ensure that these actions happen every time someone runs `npm publish`, they should be in the `prepublish` step.

What does `bower install && bower update` do that `bower install` by itself does not?