message: Minor fix for addText
diff: @@ -64,7 +64,7 @@ if ( NODEJS ) {
  var PptxGenJS = function(){
  // APP
  var APP_VER = "1.11.0-beta";
  - var APP_REL = "20171115";
  + var APP_REL = "20171116";
  // CONSTANTS
  var MASTER_OBJECTS = {
  @@ -3570,7 +3570,7 @@ var PptxGenJS = function(){
  slideObj.text.forEach(function(obj,idx){
  // A: Set options
  obj.options = obj.options || slideObj.options || {};
  - if ( idx == 0 && !obj.options.bullet && slideObj.options.bullet ) obj.options.bullet = slideObj.options.bullet;
  + if ( idx == 0 && obj.options && !obj.options.bullet && slideObj.options.bullet ) obj.options.bullet = slideObj.options.bullet;
  // B: Cast to text-object and fix line-breaks (if needed)
  if ( typeof obj.text === 'string' || typeof obj.text === 'number' ) {
  