code: function installPackage(zipFileLocation, callback) {
          var formData = {
              'file': fs.createReadStream(zipFileLocation),
              'force': 'true',
              'install': 'true',
          };
  
          var postUri = uri()
              .scheme(options.deployScheme)
              .host(options.deployHost)
              .port(options.deployPort)
              .path('/crx/packmgr/service.jsp');
  
          gutil.log(PLUGIN_NAME, 'Installing CRX package to ' + postUri.toString());
  
          request.post({
              url: postUri.toString(),
              formData: formData,
              headers: {
                  'Authorization': 'Basic ' +
                      new Buffer(options.deployUsername + ':' +
                             options.deployPassword).toString('base64')
              }
          }, callback);
      }
docs: Installs a CRX package via an HTTP POST (basic authentication)
  to an AEM instance.
  @param zipFileLocation
  @param callback