code: function addAll(packages, packageIndex) {
  		
  	// iterate over packages and prepare urls before I call the registry
  	for (var p in packages) {
  		if(p.indexOf('@') === 0) {
  			p = p.substring(p.indexOf('/') + 1, p.length)
  		}
  		var package = p + '@' + packages[p]
  
  		if (packageIndex.indexOf(package) === -1) {
  			packageIndex.push(package)
  		}
  	}	
  }
docs: /*
  add all packages to a package index array.
  maintaining uniqueness (crude methods)