message: fix last checkin
diff: <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs/dist/pptxgen.colors.js"></script>
  <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs/dist/pptxgen.shapes.js"></script>
  + <!--
  + TODO: [only used during `-beta` dev cycles; update to below on release]
  + -->
  + <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs@master/dist/pptxgen.bundle.js"></script>
  + <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs@master/examples/pptxgenjs-demo.js"></script>
  + <!-- RELEASE (CDN)
  + <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs@latest/dist/pptxgen.bundle.js"></script>
  + <script src="https://cdn.jsdelivr.net/gh/gitbrent/pptxgenjs@latest/examples/pptxgenjs-demo.js"></script>
  + -->
  + <!-- OFFICE365 TESTING:
  + <script src="../SiteAssets/pptxgenjs/libs/jquery.min.js"></script>
  + <script src="../SiteAssets/pptxgenjs/libs/jszip.min.js"></script>
  + <script src="../SiteAssets/pptxgenjs/dist/pptxgen.js"></script>
  + <script src="../SiteAssets/pptxgenjs/examples/pptxgenjs-demo.js"></script>
  + -->
  + <!-- LOCAL TESTING:
  <script src="../libs/promise.min.js"></script>
  <script src="../libs/jquery.min.js"></script>
  <script src="../libs/jszip.min.js"></script>
  <script src="../dist/pptxgen.js"></script>
  <script src="../examples/pptxgenjs-demo.js"></script>
  + -->
  + <!-- LOCAL TESTING: MIN:
  + <script src="../libs/promise.min.js"></script>
  + <script src="../libs/jquery.min.js"></script>
  + <script src="../libs/jszip.min.js"></script>
  + <script src="../dist/pptxgen.min.js"></script>
  + <script src="../examples/pptxgenjs-demo.js"></script>
  + -->
  + <!-- LOCAL TESTING: BUNDLE:
  + <script src="../dist/pptxgen.bundle.js"></script>
  + <script src="../examples/pptxgenjs-demo.js"></script>
  + -->
  <script>
  // ==================================================================================================================
  