add appveyor configuration

Author: Benjamin Coe

appveyor.yml

@@ -0,0 +1,42 @@
+# http://www.appveyor.com/docs/appveyor-yml
+
+# Test against these versions of Node.js.
+environment:
+  matrix:
+    - nodejs_version: "0.10"
+    - nodejs_version: "0.12"
+    - nodejs_version: "3.0"
+    - nodejs_version: "4.0"
+
+# Install scripts. (runs after repo cloning)
+install:
+  # Get the latest stable version of Node 0.STABLE.latest
+  - ps: Install-Product node $env:nodejs_version
+  # Typical npm stuff.
+  - npm install
+
+# Install Redis.
+before_build:
+  - nuget restore .\Hangfire.Redis.StackExchange.sln
+  - packages\Redis-32.2.6.12.1\tools\redis-server.exe --service-install
+  - packages\Redis-32.2.6.12.1\tools\redis-server.exe --service-start
+  - '@ECHO Redis Started'
+
+# Post-install test scripts.
+test_script:
+  # Output useful info for debugging.
+  - node --version
+  - npm --version
+  # We test multiple Windows shells
+  - ps: "npm t # PowerShell" # Pass comment to PS for easier debugging
+  - cmd: npm t
+
+os:
+  - Default Azure
+  - Windows Server 2012 R2
+
+# Don't actually build using MSBuild
+build: off
+
+# Set build version format here instead of in the admin panel.
+version: "{build}"