adds rake task to scrape sites for spec examples

spec/support/cases/microformats-2-8.js

@@ -0,0 +1,17 @@
+// http://microformats.org/wiki/microformats-2
+{
+  "items": [{ 
+    "type": ["h-card"],
+    "properties": {
+      "name": ["Mitchell Baker"],
+      "url": ["http://blog.lizardwrangler.com/"]
+    },
+    "children": [{
+      "type": ["h-card","h-org"],
+      "properties": {
+        "name": ["Mozilla Foundation"],
+        "url": ["http://mozilla.org/"]
+      }  
+    }]
+  }]
+}