mqtt stuff added

node_modules/unique-stream/LICENSE

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+Copyright 2014 Eugene Ware
+
+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/unique-stream/README.md

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+# unique-stream
+
+node.js through stream that emits a unique stream of objects based on criteria
+
+[![Build Status](https://travis-ci.org/eugeneware/unique-stream.svg?branch=master)](https://travis-ci.org/eugeneware/unique-stream)
+[![Coverage Status](https://coveralls.io/repos/eugeneware/unique-stream/badge.svg?branch=master&service=github)](https://coveralls.io/github/eugeneware/unique-stream?branch=master)
+
+## Installation
+
+Install via [npm](https://www.npmjs.com/):
+
+```
+$ npm install unique-stream
+```
+
+## Examples
+
+### Dedupe a ReadStream based on JSON.stringify:
+
+``` js
+var unique = require('unique-stream')
+  , Stream = require('stream');
+
+// return a stream of 3 identical objects
+function makeStreamOfObjects() {
+  var s = new Stream;
+  s.readable = true;
+  var count = 3;
+  for (var i = 0; i < 3; i++) {
+    setImmediate(function () {
+      s.emit('data', { name: 'Bob', number: 123 });
+      --count || end();
+    });
+  }
+
+  function end() {
+    s.emit('end');
+  }
+
+  return s;
+}
+
+// Will only print out one object as the rest are dupes. (Uses JSON.stringify)
+makeStreamOfObjects()
+  .pipe(unique())
+  .on('data', console.log);
+
+```
+
+### Dedupe a ReadStream based on an object property:
+
+``` js
+// Use name as the key field to dedupe on. Will only print one object
+makeStreamOfObjects()
+  .pipe(unique('name'))
+  .on('data', console.log);
+```
+
+### Dedupe a ReadStream based on a custom function:
+
+``` js
+// Use a custom function to dedupe on. Use the 'number' field. Will only print one object.
+makeStreamOfObjects()
+  .pipe(function (data) {
+    return data.number;
+  })
+  .on('data', console.log);
+```
+
+## Dedupe multiple streams
+
+The reason I wrote this was to dedupe multiple object streams:
+
+``` js
+var aggregator = unique();
+
+// Stream 1
+makeStreamOfObjects()
+  .pipe(aggregator);
+
+// Stream 2
+makeStreamOfObjects()
+  .pipe(aggregator);
+
+// Stream 3
+makeStreamOfObjects()
+  .pipe(aggregator);
+
+aggregator.on('data', console.log);
+```
+
+## Use a custom store to record keys that have been encountered
+
+By default a set is used to store keys encountered so far, in order to check new ones for
+uniqueness. You can supply your own store instead, providing it supports the add(key) and 
+has(key) methods. This could allow you to use a persistant store so that already encountered
+objects are not re-streamed when node is reloaded.
+
+``` js
+var keyStore = {
+  store: {},
+
+  add: function(key) {
+    this.store[key] = true;
+  },
+
+  has: function(key) {
+    return this.store[key] !== undefined;
+  }
+};
+    
+makeStreamOfObjects()
+  .pipe(unique('name', keyStore))
+  .on('data', console.log);
+```
+
+## Contributing
+
+unique-stream is an **OPEN Open Source Project**. This means that:
+
+> Individuals making significant and valuable contributions are given commit-access to the project to contribute as they see fit. This project is more like an open wiki than a standard guarded open source project.
+
+See the [CONTRIBUTING.md](https://github.com/eugeneware/unique-stream/blob/master/CONTRIBUTING.md) file for more details.
+
+### Contributors
+
+unique-stream is only possible due to the excellent work of the following contributors:
+
+<table><tbody>
+<tr><th align="left">Eugene Ware</th><td><a href="https://github.com/eugeneware">GitHub/eugeneware</a></td></tr>
+<tr><th align="left">Craig Ambrose</th><td><a href="https://github.com/craigambrose">GitHub/craigambrose</a></td></tr>
+<tr><th align="left">Shinnosuke Watanabe</th><td><a href="https://github.com/shinnn">GitHub/shinnn</a></td></tr>
+</tbody></table>

node_modules/unique-stream/index.js

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+'use strict';
+
+var filter = require('through2-filter').obj;
+var stringify = require("json-stable-stringify");
+
+var ES6Set;
+if (typeof global.Set === 'function') {
+  ES6Set = global.Set;
+} else {
+  ES6Set = function() {
+    this.keys = [];
+    this.has = function(val) {
+      return this.keys.indexOf(val) !== -1;
+    },
+    this.add = function(val) {
+      this.keys.push(val);
+    }
+  }
+}
+
+function prop(propName) {
+  return function (data) {
+    return data[propName];
+  };
+}
+
+module.exports = unique;
+function unique(propName, keyStore) {
+  keyStore = keyStore || new ES6Set();
+
+  var keyfn = stringify;
+  if (typeof propName === 'string') {
+    keyfn = prop(propName);
+  } else if (typeof propName === 'function') {
+    keyfn = propName;
+  }
+
+  return filter(function (data) {
+    var key = keyfn(data);
+
+    if (keyStore.has(key)) {
+      return false;
+    }
+
+    keyStore.add(key);
+    return true;
+  });
+}

node_modules/unique-stream/package.json

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+{
+  "_from": "unique-stream@^2.0.2",
+  "_id": "unique-stream@2.2.1",
+  "_inBundle": false,
+  "_integrity": "sha1-WqADz76Uxf+GbE59ZouxxNuts2k=",
+  "_location": "/unique-stream",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "unique-stream@^2.0.2",
+    "name": "unique-stream",
+    "escapedName": "unique-stream",
+    "rawSpec": "^2.0.2",
+    "saveSpec": null,
+    "fetchSpec": "^2.0.2"
+  },
+  "_requiredBy": [
+    "/glob-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/unique-stream/-/unique-stream-2.2.1.tgz",
+  "_shasum": "5aa003cfbe94c5ff866c4e7d668bb1c4dbadb369",
+  "_spec": "unique-stream@^2.0.2",
+  "_where": "/home/wn/workspace-node/PiAlive/node_modules/glob-stream",
+  "author": {
+    "name": "Eugene Ware",
+    "email": "eugene@noblesamurai.com"
+  },
+  "bugs": {
+    "url": "https://github.com/eugeneware/unique-stream/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "json-stable-stringify": "^1.0.0",
+    "through2-filter": "^2.0.0"
+  },
+  "deprecated": false,
+  "description": "node.js through stream that emits a unique stream of objects based on criteria",
+  "devDependencies": {
+    "after": "~0.8.1",
+    "chai": "^3.0.0",
+    "istanbul": "^0.4.2",
+    "istanbul-coveralls": "^1.0.3",
+    "mocha": "^2.1.0"
+  },
+  "files": [
+    "index.js"
+  ],
+  "homepage": "https://github.com/eugeneware/unique-stream#readme",
+  "keywords": [
+    "unique",
+    "stream",
+    "unique-stream",
+    "streaming",
+    "streams"
+  ],
+  "license": "MIT",
+  "name": "unique-stream",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/eugeneware/unique-stream.git"
+  },
+  "scripts": {
+    "coverage": "istanbul cover _mocha",
+    "coveralls": "${npm_package_scripts_coverage} && istanbul-coveralls",
+    "test": "mocha"
+  },
+  "version": "2.2.1"
+}