Build: Add AppVeyor CI (fixes #4894)

Makefile.js

@@ -69,7 +69,7 @@ var NODE = "node ", // intentional extra space
     ISSUE_REGEX = /\((?:fixes|refs) #\d+(?:.*(?:fixes|refs) #\d+)*\)$/,
 
     // Settings
-    MOCHA_TIMEOUT = 4000;
+    MOCHA_TIMEOUT = 10000;
 
 //------------------------------------------------------------------------------
 // Helpers

README.md

@@ -1,5 +1,6 @@
 [![NPM version][npm-image]][npm-url]
 [![build status][travis-image]][travis-url]
+[![Build status][appveyor-image]][appveyor-url]
 [![Test coverage][coveralls-image]][coveralls-url]
 [![Downloads][downloads-image]][downloads-url]
 [![Bountysource](https://www.bountysource.com/badge/tracker?tracker_id=282608)](https://www.bountysource.com/trackers/282608-eslint?utm_source=282608&utm_medium=shield&utm_campaign=TRACKER_BADGE)
@@ -120,6 +121,8 @@ Join our [Mailing List](https://groups.google.com/group/eslint) or [Chatroom](ht
 [npm-url]: https://www.npmjs.com/package/eslint
 [travis-image]: https://img.shields.io/travis/eslint/eslint/master.svg?style=flat-square
 [travis-url]: https://travis-ci.org/eslint/eslint
+[appveyor-image]: https://ci.appveyor.com/api/projects/status/iwxmiobcvbw3b0av/branch/master?svg=true
+[appveyor-url]: https://ci.appveyor.com/project/nzakas/eslint/branch/master
 [coveralls-image]: https://img.shields.io/coveralls/eslint/eslint/master.svg?style=flat-square
 [coveralls-url]: https://coveralls.io/r/eslint/eslint?branch=master
 [downloads-image]: https://img.shields.io/npm/dm/eslint.svg?style=flat-square

appveyor.yml

@@ -7,10 +7,7 @@ version: "{build}"
 # What combinations to test
 environment:
   matrix:
-    # 2 means latest iojs version in 2.x versions
-    - nodejs_version: 2
-    - nodejs_version: 0.12
-    - nodejs_version: 0.10
+    - nodejs_version: 4
 
 install:
   # Get the latest stable version of Node.js or io.js