message: better prop lookup for secondaryValAxis
diff: @@ -489,7 +489,7 @@ export function makeXmlCharts(rel: ISlideRelChart): string {
  //let options: IChartOptsLib = { type: type.type, }
  let valAxisId = options['secondaryValAxis'] ? AXIS_ID_VALUE_SECONDARY : AXIS_ID_VALUE_PRIMARY
  let catAxisId = options['secondaryCatAxis'] ? AXIS_ID_CATEGORY_SECONDARY : AXIS_ID_CATEGORY_PRIMARY
  - usesSecondaryValAxis = usesSecondaryValAxis || options['secondaryValAxis']
  + usesSecondaryValAxis = usesSecondaryValAxis || options.secondaryValAxis
  strXml += makeChartType(type.type, type.data, options, valAxisId, catAxisId, true)
  })
  } else {
  @@ -569,9 +569,7 @@ export function makeXmlCharts(rel: ISlideRelChart): string {
  strXml += rel.opts.fill ? genXmlColorSelection(rel.opts.fill) : '<a:noFill/>'
  // OPTION: Border
  - strXml += rel.opts.border
  - ? `<a:ln w="${valToPts(rel.opts.border.pt)}" cap="flat">${genXmlColorSelection(rel.opts.border.color)}</a:ln>`
  - : '<a:ln><a:noFill/></a:ln>'
  + strXml += rel.opts.border ? `<a:ln w="${valToPts(rel.opts.border.pt)}" cap="flat">${genXmlColorSelection(rel.opts.border.color)}</a:ln>` : '<a:ln><a:noFill/></a:ln>'
  // Close shapeProp/plotArea before Legend
  strXml += ' <a:effectLst/>'
  