Service = function(app, opts) {
  this.app = app;
  this.handlerMap = {};
  if(!!opts.reloadHandlers) {
    watchHandlers(app, this.handlerMap);
  }

  this.enableForwardLog = opts.enableForwardLog || false;
}
Handler service.
Dispatch request to the relactive handler.

@param {Object} app      current application context