Change to snap on travisCI

.travis.yml

@@ -1,6 +1,20 @@
 language: node_js
 node_js:
-  - 'stable'
+  - stable
-  - 'lts/*'
+  - lts/*
-
+script:
-script: npm run lint && npm run test
+  - npm run lint && npm run test
+  - npm install -g grunt npm@5.2 && grunt pre-build
+after_success:
+  - openssl aes-256-cbc -K $encrypted_440d7f9a3c38_key -iv $encrypted_440d7f9a3c38_iv
+    -in .snapcraft/travis_snapcraft.cfg -out .snapcraft/snapcraft.cfg -d
+sudo: required
+services:
+  - docker
+deploy:
+  'on':
+    branch: master
+  provider: script
+  script: if [ ${TRAVIS_NODE_VERSION} = "stable" ];then docker run -v $(pwd):$(pwd) -t snapcore/snapcraft sh -c "apt update -qq
+    && cd $(pwd) && snapcraft && snapcraft push *.snap --release edge"; fi
+  skip_cleanup: true