Switched from Appveyor to Travis-CI for cross-platform CI

Author: JamesMessinger

.travis.yml

@@ -3,19 +3,19 @@
 # https://docs.travis-ci.com/user/customizing-the-build/
 # https://docs.travis-ci.com/user/migrating-from-legacy/
 
-dist: trusty
-sudo: false
 language: node_js
 
-matrix:
-  include:
-    - node_js: 6
-    - node_js: 8
-    - node_js: 10
+node_js:
+  - 10
+  - 8
+  - 6
 
-script:
-  - npm run lint
-  - npm run coverage
+os:
+  - linux
+  - osx
+  - windows
+
+script: npm run lint && npm run coverage
 
 after_success:
   # send code-coverage data to Coveralls

appveyor.yml

@@ -1,7 +1,7 @@
 # Version-Bump-Prompt
 
-[![Build Status](https://api.travis-ci.org/JS-DevTools/version-bump-prompt.svg?branch=master)](https://travis-ci.org/JS-DevTools/version-bump-prompt)
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/github/JS-DevTools/version-bump-prompt?svg=true&branch=master&failingText=Windows%20build%20failing&passingText=Windows%20build%20passing)](https://ci.appveyor.com/project/JamesMessinger/version-bump-prompt/branch/master)
+[![Cross-Platform Compatibility](https://jsdevtools.org/img/os-badges.svg)](https://travis-ci.com/JS-DevTools/version-bump-prompt)
+[![Build Status](https://api.travis-ci.com/JS-DevTools/version-bump-prompt.svg?branch=master)](https://travis-ci.com/JS-DevTools/version-bump-prompt)
 
 [![Coverage Status](https://coveralls.io/repos/github/JS-DevTools/version-bump-prompt/badge.svg?branch=master)](https://coveralls.io/github/JS-DevTools/version-bump-prompt)
 [![Dependencies](https://david-dm.org/JS-DevTools/version-bump-prompt.svg)](https://david-dm.org/JS-DevTools/version-bump-prompt)