import from la bonne adresse and first refactoring for ouidade.com

user/themes/ouidade/bower_components/modernizr/feature-detects/dom-dataset.js

@@ -0,0 +1,9 @@
+
+// dataset API for data-* attributes
+// test by @phiggins42
+
+Modernizr.addTest('dataset', function(){
+  var n = document.createElement("div");
+  n.setAttribute("data-a-b", "c");
+  return !!(n.dataset && n.dataset.aB === "c");
+});