HTTP is a more behind-the-firewall accessible protocol than git://

Many of our customers are behind firewalls. Let's make it easier for them to access our repository by toggling from the aging git:// protocol to the more firewall-friendly and equally as performant http:// URL for this project.

This is documented as the Node standard about half way down their documentation page at https://www.npmjs.org/doc/files/package.json.html

CC @ryanrutan