bump travis ci node versions

Author: amilajack

.travis.yml

@@ -1,22 +1,14 @@
-sudo: false
-
 os:
   - linux
   - osx
+  - windows
 
 language: node_js
 
 node_js:
-  - 6
-  - 4
+  - node
+  - 10
 
 cache:
   directories:
     - node_modules
-
-install:
-  - npm i -g npm@latest
-  - npm install
-
-notifications:
-  email: false

README.md

@@ -1,15 +1,11 @@
 # Parallel.js
 
-[![Throughput Graph](https://graphs.waffle.io/parallel-js/parallel.js/throughput.svg)](https://waffle.io/parallel-js/parallel.js/metrics/throughput)
-
 [![Build Status](https://travis-ci.org/parallel-js/parallel.js.svg?branch=master)](https://travis-ci.org/parallel-js/parallel.js)
 [![NPM version](https://badge.fury.io/js/paralleljs.svg)](http://badge.fury.io/js/paralleljs)
 [![Dependency Status](https://img.shields.io/david/parallel-js/parallel.js.svg)](https://david-dm.org/parallel-js/parallel.js)
 [![npm](https://img.shields.io/npm/dm/paralleljs.svg?maxAge=2592000)](https://www.npmjs.com/package/paralleljs)
 [![Pull Requests Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat)](http://makeapullrequest.com)
 [![first-timers-only Friendly](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](http://www.firsttimersonly.com/)
-<!-- [![Known Vulnerabilities](https://snyk.io/test/github/parallel-js/paralle.js/badge.svg)](https://snyk.io/test/github/parallel-js/paralle.js) -->
-<!-- [![Join the chat at on Gitter.im](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/parallel-js/parallel.js) -->
 
 **Easy Parallel Computing with Javascript**