mqtt stuff added

node_modules/callback-stream/README.md

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+CallbackStream
+=====
+
+[![Build
+Status](https://travis-ci.org/mcollina/callback-stream.png)](https://travis-ci.org/mcollina/callback-stream)
+
+It is a safe variant of the
+[concat-stream](https://github.com/maxogden/node-concat-stream)
+package that _will always return an array_.
+
+It does everything callback-stream does, minus the concatenation.
+In fact, it just callbacks you with an array containing your
+good stuff.
+
+It is based on the Stream 2 API, but it also works on node v0.8.
+It also support Stream 3, which is bundled with node v0.12 and iojs.
+
+## Installation
+
+```
+npm install callback-stream --save
+```
+
+## Pipe usage
+
+```js
+var callback = require('callback-stream')
+var fs = require('fs')
+var read = fs.createReadStream('readme.md')
+var write = callback(function (err, data) {
+  console.log(err, data)
+})
+
+read.pipe(write)
+```
+
+## Object mode usage
+
+```
+var callback = require('callback-stream')
+var write = callback.obj(function (err, data) {
+  // this will print ['hello', 'world']
+  console.log(data)
+})
+
+write.write('hello')
+write.write('world')
+write.end()
+```
+
+## Contributing to CallbackStream
+
+* Check out the latest master to make sure the feature hasn't been
+  implemented or the bug hasn't been fixed yet
+* Check out the issue tracker to make sure someone already hasn't
+  requested it and/or contributed it
+* Fork the project
+* Start a feature/bugfix branch
+* Commit and push until you are happy with your contribution
+* Make sure to add tests for it. This is important so I don't break it
+  in a future version unintentionally.
+
+## LICENSE - "MIT License"
+
+Copyright (c) 2013-2015 Matteo Collina, http://matteocollina.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.