Paginator can change the page of the table now

Example page will refresh the data with a timeout when page is changed to simulate an AJAX request.

It's really fast to refresh.  It's instant after the AJAX is received.  We'll see how it holds up when we've got 20 columns with select boxes, each with 10-20 options.
Hook up the demo page count buttons so the active one is set
Merge branch 'feature/pagination' into develop