Index: frontend/node_modules/stable/README.md
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+## Stable
+
+A stable array sort, because `Array#sort()` is not guaranteed stable.
+
+MIT licensed.
+
+[![Node.js CI](https://secure.travis-ci.org/Two-Screen/stable.png)](http://travis-ci.org/Two-Screen/stable)
+
+[![Browser CI](http://ci.testling.com/Two-Screen/stable.png)](http://ci.testling.com/Two-Screen/stable)
+
+#### From npm
+
+Install with:
+
+```sh
+npm install stable
+```
+
+Then use it in Node.js or some other CommonJS environment as:
+
+```js
+const stable = require('stable')
+```
+
+#### From the browser
+
+Include [`stable.js`] or the minified version [`stable.min.js`]
+in your page, then call `stable()`.
+
+ [`stable.js`]: https://raw.github.com/Two-Screen/stable/master/stable.js
+ [`stable.min.js`]: https://raw.github.com/Two-Screen/stable/master/stable.min.js
+
+#### Usage
+
+The default sort is, as with `Array#sort`, lexicographical:
+
+```js
+stable(['foo', 'bar', 'baz'])  // => ['bar', 'baz', 'foo']
+stable([10, 1, 5])             // => [1, 10, 5]
+```
+
+Unlike `Array#sort`, the default sort is **NOT** in-place. To do an in-place
+sort, use `stable.inplace`, which otherwise works the same:
+
+```js
+const arr = [10, 1, 5]
+stable(arr) === arr          // => false
+stable.inplace(arr) === arr  // => true
+```
+
+A comparator function can be specified:
+
+```js
+// Regular sort() compatible comparator, that returns a number.
+// This demonstrates the default behavior.
+const lexCmp = (a, b) => String(a).localeCompare(b)
+stable(['foo', 'bar', 'baz'], lexCmp)  // => ['bar', 'baz', 'foo']
+
+// Boolean comparator. Sorts `b` before `a` if true.
+// This demonstrates a simple way to sort numerically.
+const greaterThan = (a, b) => a > b
+stable([10, 1, 5], greaterThan)  // => [1, 5, 10]
+```
+
+#### License
+
+Copyright (C) 2018 Angry Bytes and contributors.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.