code: function hostXrd(host, callback) {
  	var context = {host: host};
      var buffer = '';
  
      Mu.compile('hostXrd.xml.mu', function (err, parsed) {
  	    if (err) return callback(err);
  	    Mu.render(parsed, context)
  	      .on('data', function (c) { buffer += c.toString(); })
  	      .on('end', function () { callback(null, buffer); });
      });
  }
docs: /*
  Generate the domain's host-meta XRD.
  
  This function simply process the hostXrd.xml.mu template and output the result. The template
  is a fairly basic one with just a LRDD link indicating how to fetch a user XRD.
  
  @param {String} host
  the domain name
  @param {Function} callback
  a callback function in the form function(err, result)