Fix.

node_modules/merge-stream/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) Stephen Sugden <me@stephensugden.com> (stephensugden.com)
+
+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.

node_modules/merge-stream/README.md

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+# merge-stream
+
+Merge (interleave) a bunch of streams.
+
+[![build status](https://secure.travis-ci.org/grncdr/merge-stream.svg?branch=master)](http://travis-ci.org/grncdr/merge-stream)
+
+## Synopsis
+
+```javascript
+var stream1 = new Stream();
+var stream2 = new Stream();
+
+var merged = mergeStream(stream1, stream2);
+
+var stream3 = new Stream();
+merged.add(stream3);
+merged.isEmpty();
+//=> false
+```
+
+## Description
+
+This is adapted from [event-stream](https://github.com/dominictarr/event-stream) separated into a new module, using Streams3.
+
+## API
+
+### `mergeStream`
+
+Type: `function`
+
+Merges an arbitrary number of streams. Returns a merged stream.
+
+#### `merged.add`
+
+A method to dynamically add more sources to the stream. The argument supplied to `add` can be either a source or an array of sources.
+
+#### `merged.isEmpty`
+
+A method that tells you if the merged stream is empty.
+
+When a stream is "empty" (aka. no sources were added), it could not be returned to a gulp task.
+
+So, we could do something like this:
+
+```js
+stream = require('merge-stream')();
+// Something like a loop to add some streams to the merge stream
+// stream.add(streamA);
+// stream.add(streamB);
+return stream.isEmpty() ? null : stream;
+```
+
+## License
+
+MIT

node_modules/merge-stream/index.js

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+'use strict';
+
+var PassThrough = require('readable-stream/passthrough')
+
+module.exports = function (/*streams...*/) {
+  var sources = []
+  var output  = new PassThrough({objectMode: true})
+
+  output.setMaxListeners(0)
+
+  output.add = add
+  output.isEmpty = isEmpty
+
+  output.on('unpipe', remove)
+
+  Array.prototype.slice.call(arguments).forEach(add)
+
+  return output
+
+  function add (source) {
+    if (Array.isArray(source)) {
+      source.forEach(add)
+      return this
+    }
+
+    sources.push(source);
+    source.once('end', remove.bind(null, source))
+    source.once('error', output.emit.bind(output, 'error'))
+    source.pipe(output, {end: false})
+    return this
+  }
+
+  function isEmpty () {
+    return sources.length == 0;
+  }
+
+  function remove (source) {
+    sources = sources.filter(function (it) { return it !== source })
+    if (!sources.length && output.readable) { output.end() }
+  }
+}

node_modules/merge-stream/package.json

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+{
+  "_from": "merge-stream@^1.0.1",
+  "_id": "merge-stream@1.0.1",
+  "_inBundle": false,
+  "_integrity": "sha1-QEEgLVCKNCugAXQAjfDCUbjBNeE=",
+  "_location": "/merge-stream",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "merge-stream@^1.0.1",
+    "name": "merge-stream",
+    "escapedName": "merge-stream",
+    "rawSpec": "^1.0.1",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.1"
+  },
+  "_requiredBy": [
+    "/jest-worker"
+  ],
+  "_resolved": "https://registry.npmjs.org/merge-stream/-/merge-stream-1.0.1.tgz",
+  "_shasum": "4041202d508a342ba00174008df0c251b8c135e1",
+  "_spec": "merge-stream@^1.0.1",
+  "_where": "E:\\github\\setup-java\\node_modules\\jest-worker",
+  "author": {
+    "name": "Stephen Sugden",
+    "email": "me@stephensugden.com"
+  },
+  "bugs": {
+    "url": "https://github.com/grncdr/merge-stream/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "readable-stream": "^2.0.1"
+  },
+  "deprecated": false,
+  "description": "Create a stream that emits events from multiple other streams",
+  "devDependencies": {
+    "from2": "^2.0.3",
+    "istanbul": "^0.3.2"
+  },
+  "files": [
+    "index.js"
+  ],
+  "homepage": "https://github.com/grncdr/merge-stream#readme",
+  "license": "MIT",
+  "name": "merge-stream",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/grncdr/merge-stream.git"
+  },
+  "scripts": {
+    "test": "istanbul cover test.js && istanbul check-cover --statements 100 --branches 100"
+  },
+  "version": "1.0.1"
+}