Node 7 not yet working on appveyor

Author: STRML

appveyor.yml

@@ -2,7 +2,7 @@
 
 environment:
   matrix:
-    - node_version: "7"
+    # - node_version: "7"
     - node_version: "6"
     - node_version: "4"
   IE_BIN: "%PROGRAMFILES%\\Internet Explorer\\iexplorer.exe"
@@ -11,6 +11,7 @@ cache:
   - "%LOCALAPPDATA%/Yarn"
 
 install:
+  - ps: Install-Product node $env:node_version
   - choco install -i yarn
   - refreshenv
   - yarn install