Added vulcanize under third_party/npm_modules

node_modules/vulcanize/node_modules/update-notifier/node_modules/latest-version/node_modules/package-json/node_modules/registry-url/readme.md

Index: node_modules/vulcanize/node_modules/update-notifier/node_modules/latest-version/node_modules/package-json/node_modules/registry-url/readme.md
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+# registry-url [![Build Status](https://travis-ci.org/sindresorhus/registry-url.svg?branch=master)](https://travis-ci.org/sindresorhus/registry-url)
+
+> Get the set npm registry URL
+
+It's usually `https://registry.npmjs.org/`, but [configurable](https://www.npmjs.org/doc/misc/npm-config.html#registry).
+
+Use this if you do anything with the npm registry as users will expect it to use their configured registry.
+
+
+## Install
+
+```sh
+$ npm install --save registry-url
+```
+
+
+## Usage
+
+```ini
+# .npmrc
+registry = 'https://custom-registry.com/'
+```
+
+```js
+var registryUrl = require('registry-url');
+
+console.log(registryUrl);
+//=> https://custom-registry.com/
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)