I gave up on this module since it wasn't working as a standalone module like it does inside OpenAtrium, so I uninstalled it. Unfortunately, after I uninstalled it, the module left behind the widgets that I had created. They are visible on the Panopoly Panes Library page, under "Widgets". Now, whenever I try to add panes to a panel and click on Widgets, I get an AJAX Error. The error went away after I disabled the widgets in the Pane Library. My question is, how do I delete these widgets completely?