mqtt stuff added

node_modules/buffer-from/index.js

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+var toString = Object.prototype.toString
+
+var isModern = (
+  typeof Buffer.alloc === 'function' &&
+  typeof Buffer.allocUnsafe === 'function' &&
+  typeof Buffer.from === 'function'
+)
+
+function isArrayBuffer (input) {
+  return toString.call(input).slice(8, -1) === 'ArrayBuffer'
+}
+
+function fromArrayBuffer (obj, byteOffset, length) {
+  byteOffset >>>= 0
+
+  var maxLength = obj.byteLength - byteOffset
+
+  if (maxLength < 0) {
+    throw new RangeError("'offset' is out of bounds")
+  }
+
+  if (length === undefined) {
+    length = maxLength
+  } else {
+    length >>>= 0
+
+    if (length > maxLength) {
+      throw new RangeError("'length' is out of bounds")
+    }
+  }
+
+  return isModern
+    ? Buffer.from(obj.slice(byteOffset, byteOffset + length))
+    : new Buffer(new Uint8Array(obj.slice(byteOffset, byteOffset + length)))
+}
+
+function fromString (string, encoding) {
+  if (typeof encoding !== 'string' || encoding === '') {
+    encoding = 'utf8'
+  }
+
+  if (!Buffer.isEncoding(encoding)) {
+    throw new TypeError('"encoding" must be a valid string encoding')
+  }
+
+  return isModern
+    ? Buffer.from(string, encoding)
+    : new Buffer(string, encoding)
+}
+
+function bufferFrom (value, encodingOrOffset, length) {
+  if (typeof value === 'number') {
+    throw new TypeError('"value" argument must not be a number')
+  }
+
+  if (isArrayBuffer(value)) {
+    return fromArrayBuffer(value, encodingOrOffset, length)
+  }
+
+  if (typeof value === 'string') {
+    return fromString(value, encodingOrOffset)
+  }
+
+  return isModern
+    ? Buffer.from(value)
+    : new Buffer(value)
+}
+
+module.exports = bufferFrom

node_modules/buffer-from/package.json

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+{
+  "_from": "buffer-from@^1.0.0",
+  "_id": "buffer-from@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha512-83apNb8KK0Se60UE1+4Ukbe3HbfELJ6UlI4ldtOGs7So4KD26orJM8hIY9lxdzP+UpItH1Yh/Y8GUvNFWFFRxA==",
+  "_location": "/buffer-from",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "buffer-from@^1.0.0",
+    "name": "buffer-from",
+    "escapedName": "buffer-from",
+    "rawSpec": "^1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "^1.0.0"
+  },
+  "_requiredBy": [
+    "/concat-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.0.0.tgz",
+  "_shasum": "4cb8832d23612589b0406e9e2956c17f06fdf531",
+  "_spec": "buffer-from@^1.0.0",
+  "_where": "/home/wn/workspace-node/PiAlive/node_modules/concat-stream",
+  "bugs": {
+    "url": "https://github.com/LinusU/buffer-from/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "A [ponyfill](https://ponyfill.com) for `Buffer.from`, uses native implementation if available.",
+  "devDependencies": {
+    "standard": "^7.1.2"
+  },
+  "homepage": "https://github.com/LinusU/buffer-from#readme",
+  "keywords": [
+    "buffer",
+    "buffer from"
+  ],
+  "license": "MIT",
+  "name": "buffer-from",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/LinusU/buffer-from.git"
+  },
+  "scripts": {
+    "test": "standard && node test"
+  },
+  "version": "1.0.0"
+}

node_modules/buffer-from/readme.md

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+# Buffer From
+
+A [ponyfill](https://ponyfill.com) for `Buffer.from`, uses native implementation if available.
+
+## Installation
+
+```sh
+npm install --save buffer-from
+```
+
+## Usage
+
+```js
+const bufferFrom = require('buffer-from')
+
+console.log(bufferFrom([1, 2, 3, 4]))
+//=> <Buffer 01 02 03 04>
+
+const arr = new Uint8Array([1, 2, 3, 4])
+console.log(bufferFrom(arr.buffer, 1, 2))
+//=> <Buffer 02 03>
+
+console.log(bufferFrom('test', 'utf8'))
+//=> <Buffer 74 65 73 74>
+
+const buf = bufferFrom('test')
+console.log(bufferFrom(buf))
+//=> <Buffer 74 65 73 74>
+```
+
+## API
+
+### bufferFrom(array)
+
+- `array` &lt;Array&gt;
+
+Allocates a new `Buffer` using an `array` of octets.
+
+### bufferFrom(arrayBuffer[, byteOffset[, length]])
+
+- `arrayBuffer` &lt;ArrayBuffer&gt; The `.buffer` property of a TypedArray or ArrayBuffer
+- `byteOffset` &lt;Integer&gt; Where to start copying from `arrayBuffer`. **Default:** `0`
+- `length` &lt;Integer&gt; How many bytes to copy from `arrayBuffer`. **Default:** `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a TypedArray instance, the
+newly created `Buffer` will share the same allocated memory as the TypedArray.
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+### bufferFrom(buffer)
+
+- `buffer` &lt;Buffer&gt; An existing `Buffer` to copy data from
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+### bufferFrom(string[, encoding])
+
+- `string` &lt;String&gt; A string to encode.
+- `encoding` &lt;String&gt; The encoding of `string`. **Default:** `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `string`. If
+provided, the `encoding` parameter identifies the character encoding of
+`string`.
+
+## See also
+
+- [buffer-alloc](https://github.com/LinusU/buffer-alloc) A ponyfill for `Buffer.alloc`
+- [buffer-alloc-unsafe](https://github.com/LinusU/buffer-alloc-unsafe) A ponyfill for `Buffer.allocUnsafe`

node_modules/buffer-from/test.js

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+var bufferFrom = require('./')
+var assert = require('assert')
+
+assert.equal(bufferFrom([1, 2, 3, 4]).toString('hex'), '01020304')
+
+var arr = new Uint8Array([1, 2, 3, 4])
+assert.equal(bufferFrom(arr.buffer, 1, 2).toString('hex'), '0203')
+
+assert.equal(bufferFrom('test', 'utf8').toString('hex'), '74657374')
+
+var buf = bufferFrom('test')
+assert.equal(bufferFrom(buf).toString('hex'), '74657374')