update travis.yml

.travis.yml

@@ -1,6 +1,7 @@
 os:
   - linux
   - osx
+  - windows
 language: node_js
 node_js:
   - '6'
@@ -10,13 +11,13 @@ before_script:
   - export NPMVERSION=$(echo "$($(which npm) -v)"|cut -c1)
   - 'if [[ $NPMVERSION == 5 ]]; then npm install -g npm@5; fi'
   - npm -v
-  - npm install winston@2.3.1
+  - npm install winston@3.2.1
   - 'npm install https://github.com/ioBroker/ioBroker.js-controller/tarball/master --production'
 env:
-  - CXX=g++-4.8
+  - CXX=g++-4.9
 addons:
   apt:
     sources:
       - ubuntu-toolchain-r-test
     packages:
-      - g++-4.8
+      - g++-4.9