message: Fix for Issue
  PPT is very particular about slide layout names.
diff: @@ -68,7 +68,7 @@ var PptxGenJS = function(){
  'LAYOUT_16x9' : { name: 'screen16x9', width: 9144000, height: 5143500 },
  'LAYOUT_16x10': { name: 'screen16x10', width: 9144000, height: 5715000 },
  'LAYOUT_WIDE' : { name: 'custom', width: 12191996, height: 6858000 },
  - 'LAYOUT_USER' : { name: 'userDefined', width: 12191996, height: 6858000 }
  + 'LAYOUT_USER' : { name: 'custom', width: 12191996, height: 6858000 }
  };
  var BASE_SHAPES = {
  RECTANGLE: { 'displayName': 'Rectangle', 'name': 'rect', 'avLst': {} },
  