build on Node 8

Author: hobbyquaker

.travis.yml

@@ -25,7 +25,7 @@ before_install:
   | tar -xz -C /tmp/git-lfs --strip-components 1 && /tmp/git-lfs/git-lfs pull
 - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install --no-install-recommends -y icnsutils graphicsmagick xz-utils bsdtar ruby-dev build-essential; sudo gem install fpm; fi
 install:
-- nvm install 6
+- nvm install 8
 - npm install electron-builder@next
 - npm install
 - npm prune

appveyor.yml

@@ -7,7 +7,7 @@ cache:
   - '%USERPROFILE%\.electron'
 
 install:
-  - ps: Install-Product node 6 x64
+  - ps: Install-Product node 8 x64
   - npm install
 
 build_script: