added appveyor (Windows CI)

README.md

@@ -2,6 +2,7 @@ Node.js: fs-extra
 =================
 
 [![build status](https://secure.travis-ci.org/jprichardson/node-fs-extra.svg)](http://travis-ci.org/jprichardson/node-fs-extra)
+[![Windows Build status](https://img.shields.io/appveyor/ci/jprichardson/node-fs-extra/master.svg?label=Windows)](https://ci.appveyor.com/project/jprichardson/node-fs-extra/branch/master)
 [![downloads per month](http://img.shields.io/npm/dm/fs-extra.svg)](https://www.npmjs.org/package/fs-extra)
 [![Coverage Status](https://img.shields.io/coveralls/jprichardson/node-fs-extra.svg)](https://coveralls.io/r/jprichardson/node-fs-extra)
 

appveyor.yml

@@ -0,0 +1,26 @@
+# Test against this version of Node.js
+environment:
+  matrix:
+    # node.js
+    - nodejs_version: "0.10"
+    - nodejs_version: "0.11"
+    # io.js
+    - nodejs_version: "1"
+
+# Install scripts. (runs after repo cloning)
+install:
+  # Get the latest stable version of Node.js or io.js
+  - ps: Install-Product node $env:nodejs_version
+  # install modules
+  - npm install
+
+# Post-install test scripts.
+test_script:
+  # Output useful info for debugging.
+  - node --version
+  - npm --version
+  # run tests
+  - npm test
+
+# Don't actually build.
+build: off