Url and path formatting helper for node/browser
Useful for sanitizing user input or output data.
var youAreEl = ;;;;;;// all equal 'foo/bar';;;// all equal 'http://facebook.com/foo/bar'// Specify protocol option;// equals 'https://facebook.com/foo/bar'// Omit protocol;// equals 'facebook.com/foo/bar'// Specify host option;// equals 'twitter.com/foo/bar'