Add objectfit and localstorage to browser features

.modernizr.json

@@ -7,6 +7,8 @@
   "feature-detects": [
     "test/css/displaytable",
     "test/css/flexbox",
-    "test/es5/specification"
+    "test/es5/specification",
+    "test/css/objectfit",
+    "test/storage/localstorage"
   ]
 }

src/vector/index.js

@@ -51,7 +51,8 @@ function checkBrowserFeatures(featureList) {
 }
 
 var validBrowser = checkBrowserFeatures([
-    "displaytable", "flexbox", "es5object", "es5function"
+    "displaytable", "flexbox", "es5object", "es5function", "localstorage",
+    "objectfit"
 ]);
 
 // We want to support some name / value pairs in the fragment