DeprecationWarning: Using Buffer without `new` will soon stop working.

node v 7.0.0

Getting warning:
```
(node:8628) DeprecationWarning: Using Buffer without `new` will soon stop working. Use `new Buffer()`, or preferably `Buffer.from()`, `Buffer.allocUnsafe()` or `Buffer.alloc()` instead.
```
from these line
```javascript
// lib/connection.js line: 299
var emptyBuffer = Buffer(0);
```

