- Use inline worker as dataURL

 - Support upload directly `base64` and `dataURI` strings
example:
```js
FilesCollection#insert({
   file: 'data:image/png,…’,
   isBase64: true, // <— Mandatory
   fileName: ‘pic.png’, // <— Mandatory
   type: ‘image/png’ // <— Mandatory
});
```

 - Compatibility with `Meteor@1.4.1.1`
 - Fix: #196 (use inline WebWorker if client has support, with fallback)
 - Implement: #192 (upload file as base64)
 - Closing: #182 with [React Integration
Example](https://github.com/VeliovGroup/Meteor-Files/wiki/React-Example)
, thanks to [@vtocco](https://github.com/vtocco)
 - Minor DemoApp update