message: Fix for callback function from Pull
diff: @@ -74,7 +74,7 @@ if ( NODEJS ) {
  var PptxGenJS = function(){
  // APP
  var APP_VER = "2.4.0-beta";
  - var APP_BLD = "20181014";
  + var APP_BLD = "20181023";
  // CONSTANTS
  var MASTER_OBJECTS = {
  @@ -1811,7 +1811,7 @@ var PptxGenJS = function(){
  zip.generateAsync({type:'nodebuffer'}).then(function(content){ gObjPptx.saveCallback(content); });
  }
  else {
  - zip.generateAsync({type:'nodebuffer'}).then(function(content){ fs.writeFile(strExportName, content, gObjPptx.saveCallback(strExportName)); });
  + zip.generateAsync({type:'nodebuffer'}).then(function(content){ fs.writeFile(strExportName, content, function(){ gObjPptx.saveCallback(strExportName); } ); });
  }
  }
  else {
  