add data-ride=carousel support for starting carousel on load

js/carousel.js

@@ -200,4 +200,11 @@
     e.preventDefault()
   })
 
+  $(window).on('load', function () {
+    $('[data-ride="carousel"]').each(function () {
+      var $carousel = $(this)
+      $carousel.carousel($carousel.data())
+    })
+  })
+
 }(window.jQuery);