TEMPORARY PROOF OF CONCEPT FOR STARTUP

This temporary change is being made for the live site to work around possible sandboxing by Google when the Chrome extension dialog is called from LOCALHOST.

Adding Bootstro 'site tour' library, and minimal code to test. Call up the test in the JS console, using:

``
bootstro.start(".bootstro", {});
``

If successful, a Bootstrap popover should appear, and the Circulate icon within it should trigger the Chrome extension install.