message: IE11 fix for Issue#57
diff: @@ -62,7 +62,7 @@ if ( NODEJS ) {
  var PptxGenJS = function(){
  // CONSTANTS
  var APP_VER = "1.3.0";
  - var APP_REL = "20170320";
  + var APP_REL = "20170321";
  //
  var LAYOUTS = {
  'LAYOUT_4x3' : { name: 'screen4x3', width: 9144000, height: 6858000 },
  @@ -2438,7 +2438,7 @@ var PptxGenJS = function(){
  arrRGB1 = $(cell).css('color').replace(/\s+/gi,'').replace('rgba(','').replace('rgb(','').replace(')','').split(',');
  arrRGB2 = $(cell).css('background-color').replace(/\s+/gi,'').replace('rgba(','').replace('rgb(','').replace(')','').split(',');
  // ISSUE#57: jQuery default is this rgba value of below giving unstyled tables a black bkgd, so use white instead (FYI: if cell has `background:#000000` jQuery returns 'rgb(0, 0, 0)', so this soln is pretty solid)
  - if ( $(cell).css('background-color') == 'rgba(0, 0, 0, 0)' ) arrRGB2 = [255,255,255];
  + if ( $(cell).css('background-color') == 'rgba(0, 0, 0, 0)' || $(cell).css('background-color') == 'transparent' ) arrRGB2 = [255,255,255];
  // B: Create option object
  var objOpts = {
  