add bower components to third party

third_party/ui/bower_components/modernizr/feature-detects/blob-constructor.js

@@ -0,0 +1,10 @@
+// Blob constructor
+// http://dev.w3.org/2006/webapi/FileAPI/#constructorBlob
+
+Modernizr.addTest('blobconstructor', function () {
+    try {
+        return !!new Blob();
+    } catch (e) {
+        return false;
+    }
+});