run deployd without mongodb (but a jsonfile instead to store data)

<img src="https://media0.giphy.com/media/3o7TKDMPKsakcn9NU4/200.gif" width="150" style="width:150px"/>

## Usage 

    $ npm install dpd-filebased-mongodb mongo-mock --save
    $ mkdir data
    $ export MONGO_DB_FILE=data/mongo.js
    $ node app.js

Now make sure you include it *before* deployd itself in your `app.js`:

		require('dpd-filebased-mongodb')           // <-- magic right there
		var deployd = require('deployd')
		var dpd = deployd({port:3000});
		dpd.listen();

> That's it! Now your data is stored in `data/mongodb.js` 

## Why 

* Sometimes you want to use deployd for simple api's without the mongodb-requirement.
* Sometimes you want to test deployd with a fake mongodb

## Notes 

* to specify a different dbfile, specify environment variable `MONGO_DB_FILE="data/foo.js"` etc
* it doesn't run *all* mongo-queries, see [mongo-mock](https://npmjs.org/package/mongomock)
* because of this, `hide(field)` doesn't always work (solution: put `if( this.password ) delete this.password` into event-code)