add query string

dashboard-ui/bower_components/query-string/readme.md

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+# query-string [![Build Status](https://travis-ci.org/sindresorhus/query-string.svg?branch=master)](https://travis-ci.org/sindresorhus/query-string)
+
+> Parse and stringify URL [query strings](http://en.wikipedia.org/wiki/Query_string)
+
+
+## Install
+
+```
+$ npm install --save query-string
+```
+
+
+## Usage
+
+```js
+const queryString = require('query-string');
+
+console.log(location.search);
+//=> '?foo=bar'
+
+const parsed = queryString.parse(location.search);
+console.log(parsed);
+//=> {foo: 'bar'}
+
+console.log(location.hash);
+//=> '#token=bada55cafe'
+
+const parsedHash = queryString.parse(location.hash);
+console.log(parsedHash);
+//=> {token: 'bada55cafe'}
+
+parsed.foo = 'unicorn';
+parsed.ilike = 'pizza';
+
+location.search = queryString.stringify(parsed);
+
+console.log(location.search);
+//=> '?foo=unicorn&ilike=pizza'
+```
+
+
+## API
+
+### .parse(*string*)
+
+Parse a query string into an object. Leading `?` or `#` are ignored, so you can pass `location.search` or `location.hash` directly.
+
+### .stringify(*object*)
+
+Stringify an object into a query string, sorting the keys.
+
+### .extract(*string*)
+
+Extract a query string from a URL that can be passed into `.parse()`.
+
+
+## Nesting
+
+This module intentionally doesn't support nesting as it's not spec'd and varies between implementations, which causes a lot of [edge cases](https://github.com/visionmedia/node-querystring/issues).
+
+You're much better off just converting the object to a JSON string:
+
+```js
+queryString.stringify({
+	foo: 'bar',
+	nested: JSON.stringify({
+		unicorn: 'cake'
+	})
+});
+//=> 'foo=bar&nested=%7B%22unicorn%22%3A%22cake%22%7D'
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](http://sindresorhus.com)