PagerDuty Client.
@constructor
@param {Object} options The options.
function PagerDuty(options, log) {
  var parsed = url.parse(options.url);
  delete parsed.host;
  this.url = url.format(parsed);

  this.users = options.users;
  this.schedules = options.schedules;
  this.log = log || logmagic.local('pagerduty');
  this.pagerduty_auth = sprintf('Token token=%s', options.password);
}