Windows build: updates to build stuff to create better windows packages

appveyor.yml

@@ -5,9 +5,14 @@ os: Windows Server 2012 R2
 clone_folder: c:\gopath\src\github.com\grafana\grafana
 
 environment:
+  nodejs_version: "0.10"
   GOPATH: c:\gopath
 
 install:
+  # install nodejs and npm
+  - ps: Install-Product node $env:nodejs_version
+  - npm install
+  # install gcc (needed for sqlite3)
   - choco install -y mingw
   - set PATH=C:\tools\mingw64\bin;%PATH%
   - echo %PATH%
@@ -18,3 +23,4 @@ install:
 
 build_script:
   - go run build.go build
+  - grunt release