simplify appveyor, travis scripts

.travis.yml

@@ -7,7 +7,4 @@ addons:
 before_install:
     - npm i -g npm@latest
 script:
-    - npm run lint
-    - npm run test
-    - npm run testdapp_1
-    - npm run testdapp_2
+    - npm test

appveyor.yml

@@ -15,12 +15,8 @@ test_script:
   # Output useful info for debugging.
   - node --version
   - npm --version
-  - npm run lint
-  - npm run test
-  # tmp fix due to windows npm5 issue
-  - cd test_apps/test_app/extensions/embark-service && npm install
-  - npm run testdapp_1
-  - npm run testdapp_2
+  # run tests
+  - npm test
 
 # Don't actually build.
 build: off