adds rake task to scrape sites for spec examples

spec/support/cases/microformats-2-2.js

@@ -0,0 +1,11 @@
+// http://microformats.org/wiki/microformats-2
+{
+  "items": [{ 
+    "type": ["h-card"],
+    "properties": {
+      "name": ["Rohit Khare"],
+      "url": ["http://rohit.khare.org"],
+      "photo": ["https://s3.amazonaws.com/twitter_production/profile_images/53307499/180px-Rohit-sq_bigger.jpg"]
+    }
+  }]
+}