Moved datatable_widget.rb to lib/apotomo. Installer will copy that entire path to target application
Changed apotomo_datatable_widget_spec.rb and widget_helper.rb to use items controller/model/table in dummy app
Wrote test for a widget event (:data) that renders as its output
Added set_trace_func to spec_helper.rb for dumping a complete trace of methods called for debugging/education