Deepstream is in maintenance mode, contributors needed

Release: Javascript/Node 5.0

Better Typescript and MIT

This version bump is mainly to respect the major version of the deepstream server, and is (almost) fully compatible with V4.

The one breaking change we figured we should sneak in is the following:

import { DeepstreamClient } from '@deepstream/client'
const client = new DeepstreamClient('localhost:6020/deepstream')

as opposed to how it was done before:

import * as deepstream from '@deepstream/client'
const client = deepstream('localhost:6020/deepstream')

This provides much better typescript support.