Changes db_data to metadata

spec/fixtures/db/metadata.json

@@ -0,0 +1,50 @@
+{
+  "wordpress": {
+    "4.0": {
+      "release_date": "2014-09-04",
+      "status": "latest"
+    },
+    "3.8.1": {
+      "release_date": "2014-01-23",
+      "status": "outdated"
+    },
+    "3.8": {
+      "release_date": "2013-12-12",
+      "status": "insecure"
+    }
+  },
+  "plugins": {
+    "no-vulns-popular": {
+      "vulnerabilities": false,
+      "popular": true,
+      "latest_version": "2.0",
+      "last_updated": "2015-05-16T00:00:00.000Z"
+    },
+    "vulnerable-not-popular": {
+      "latest_version": null,
+      "last_updated": null,
+      "popular": false,
+      "vulnerabilities": true
+    }
+  },
+  "themes": {
+    "no-vulns-popular": {
+      "popular": true,
+      "latest_version": "2.0",
+      "last_updated": "2015-05-16T00:00:00.000Z",
+      "vulnerabilities": false
+    },
+    "dignitas-themes": {
+      "popular": true,
+      "latest_version": null,
+      "last_updated": null,
+      "vulnerabilities" : true
+    },
+    "yaaburnee-themes": {
+      "popular": false,
+      "latest_version": null,
+      "last_updated": null,
+      "vulnerabilities" : true
+    }
+  }
+}