Add AppVeyor ci config to enable ci tests on Windows

Influxdb uses gdm for the dependency management. For gdm to work on Windows, it needs go 1.6. Influx still uses go 1.4.3. So go 1.6 will be sed for the pre-build stages, and go 1.4.3 to run the tests.
This arrangements is working in AppVeyor now.

CHANGELOG.md

@@ -45,6 +45,7 @@ This release removes all of the old clustering code. It operates as a standalone
 - [#6153](https://github.com/influxdata/influxdb/issues/6153): Check SHARD DURATION when recreating the same database
 - [#6178](https://github.com/influxdata/influxdb/issues/6178): Ensure SHARD DURATION is checked when recreating a retention policy
 - [#6223](https://github.com/influxdata/influxdb/issues/6223): Failure to start/run on Windows. Thanks @mvadu
+- [#6237](https://github.com/influxdata/influxdb/issues/6237): Enable continuous integration testing on Windows platform via AppVeyor. Thanks @mvadu
 
 ## v0.11.1 [2016-03-31]
 

appveyor.yml

@@ -0,0 +1,46 @@
+version: 0.{build}
+pull_requests:
+  do_not_increment_build_number: true
+branches:
+  only:
+  - master
+
+os: Windows Server 2012 R2
+
+# Custom clone folder (variables are not expanded here).
+clone_folder: c:\gopath\src\github.com\influxdata\influxdb
+
+# Environment variables
+environment:
+  #AppVeyor has go 1.6 as default go environment
+  GOROOT: C:\go
+  GOPATH: C:\gopath
+
+# Scripts that run after cloning repository
+install:
+ - set PATH=%GOROOT%\bin;%GOPATH%\bin;%PATH%
+ - echo %PATH%
+ - echo %GOPATH%
+ - cd C:\gopath\src\github.com\influxdata\influxdb
+ - go version
+ - go env
+ - go get github.com/sparrc/gdm
+ - cd C:\gopath\src\github.com\influxdata\influxdb
+ - gdm restore
+
+# To run your custom scripts instead of automatic MSBuild 
+build_script:
+ #Currently for gdm to work on Windows, we need go 1.6, but Influx is on go1.4.3, so switch the go environment
+ - set GOROOT=C:\go14
+ - set PATH=%GOROOT%\bin;%GOPATH%\bin;%PATH%
+ - echo %PATH%
+ - echo %GOPATH%
+ - go get -t -v ./...
+  
+# To run your custom scripts instead of automatic tests
+#test_script:
+ - go test -race -v ./...
+ 
+# To disable deployment
+deploy: off
+