Modified version of jqm-data-cache-never.js which allows for removal of all pages and keeping on pages marked.

jqm-data-cache-never.js

// force certain pages to be refreshed every time.
// mark such pages with 'data-cache="keep"' to keep
//
    jQuery('div').live('pagehide', function(event, ui){
      var page = jQuery(event.target);

      if(page.attr('data-cache') != 'keep'){
        page.remove();
      };
    });