Merge branch '2.2.2-wip' into exploratory

Conflicts:
	docs/assets/css/bootstrap.css
	docs/components.html
	docs/templates/pages/components.mustache
	less/alerts.less
	less/button-groups.less
	less/buttons.less
	less/tests/css-tests.html

docs/javascript.html

@@ -1728,7 +1728,6 @@ $('[data-spy="affix"]').each(function () {
     <!-- Placed at the end of the document so the pages load faster -->
     <script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>
     <script src="assets/js/jquery.js"></script>
-    <script src="assets/js/google-code-prettify/prettify.js"></script>
     <script src="assets/js/bootstrap-transition.js"></script>
     <script src="assets/js/bootstrap-alert.js"></script>
     <script src="assets/js/bootstrap-modal.js"></script>
@@ -1742,6 +1741,10 @@ $('[data-spy="affix"]').each(function () {
     <script src="assets/js/bootstrap-carousel.js"></script>
     <script src="assets/js/bootstrap-typeahead.js"></script>
     <script src="assets/js/bootstrap-affix.js"></script>
+
+    <script src="assets/js/holder/holder.js"></script>
+    <script src="assets/js/google-code-prettify/prettify.js"></script>
+
     <script src="assets/js/application.js"></script>