Merge branch 'dev' of github.com:mrdoob/three.js into gltf_khr_lights_v2

Author: MiiBond

.github/ISSUE_TEMPLATE.md

@@ -19,7 +19,7 @@ Please also include a live example if possible. You can start from these templat
 ##### Three.js version
 
 - [ ] Dev
-- [ ] r90
+- [ ] r91
 - [ ] ...
 
 ##### Browser

.gitignore

@@ -7,3 +7,4 @@ node_modules
 npm-debug.log
 .jshintrc
 .vs/
+test/unit/three.*.unit.js

.npmignore

@@ -5,3 +5,4 @@ test/
 utils/
 docs/
 editor/
+.DS_Store

.travis.yml

@@ -0,0 +1,5 @@
+language: node_js
+node_js:
+  - "8.9.4"
+script:
+  - npm run travis

README.md

@@ -1,11 +1,11 @@
 three.js
 ========
 
-[![Gitter][gitter-badge]][gitter-badge-url]
 [![Latest NPM release][npm-badge]][npm-badge-url]
 [![License][license-badge]][license-badge-url]
 [![Dependencies][dependencies-badge]][dependencies-badge-url]
 [![Dev Dependencies][devDependencies-badge]][devDependencies-badge-url]
+[![Build Status](https://travis-ci.org/mrdoob/three.js.svg?branch=dev)](https://travis-ci.org/mrdoob/three.js)
 
 #### JavaScript 3D library ####
 
@@ -16,7 +16,9 @@ The aim of the project is to create an easy to use, lightweight, 3D library. The
 [Wiki](https://github.com/mrdoob/three.js/wiki) —
 [Migrating](https://github.com/mrdoob/three.js/wiki/Migration-Guide) —
 [Questions](http://stackoverflow.com/questions/tagged/three.js) —
-[Forum](https://discourse.threejs.org/)
+[Forum](https://discourse.threejs.org/) —
+[Gitter](https://gitter.im/mrdoob/three.js) —
+[Slack](https://threejs-slack.herokuapp.com/)
 
 ### Usage ###
 
@@ -74,8 +76,6 @@ If everything went well you should see [this](https://jsfiddle.net/f2Lommf5/).
 [releases](https://github.com/mrdoob/three.js/releases)
 
 
-[gitter-badge]: https://badges.gitter.im/mrdoob/three.js.svg
-[gitter-badge-url]: https://gitter.im/mrdoob/three.js
 [npm-badge]: https://img.shields.io/npm/v/three.svg
 [npm-badge-url]: https://www.npmjs.com/package/three
 [license-badge]: https://img.shields.io/npm/l/three.svg