Fix missing variable and instruction cols

- Add environment variable to disable VSTest dependent or excluding tests
- Appveyor did not run tests

.travis.yml

@@ -4,6 +4,10 @@ os:
   - osx
   - linux
 
+env:
+  - HasVs=true
+
+
 before_install:
   - if [ $TRAVIS_OS_NAME == "linux" ]; then
       export DISPLAY=:99.0;

appveyor.yml

@@ -14,4 +14,5 @@ build_script:
 test_script:
 - cmd: >-
     node --version
+
     node ./node_modules/vscode/bin/test