configuring for travis

.travis.yml

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+sudo: false
+language: node_js
+node_js:
+  - "10.11.0"
+env:
+  - CXX=g++-5
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - g++-5
+script:
+  - npm test
+  - npm build
+branches:
+  only: 
+    - gh-pages
+    - /.*/ 
+deploy:
+  - provider: script
+    skip_cleanup: true
+    script: bash .travis_publish
+    on:
+      tags: true
+  - provider: npm
+    email: "[email protected]"
+    api_key: $NPM_AUTH_TOKEN
+    on:
+      tags: true

.travis_publish

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+#!/bin/bash
+# based on https://github.com/linkeddata/rdflib.js/blob/master/.travis_publish
+PUBLICATION_BRANCH=gh-pages
+
+# Checkout the branch
+REPO_PATH=$PWD
+pushd $HOME
+git clone --branch=$PUBLICATION_BRANCH https://${GITHUB_TOKEN}@github.com/$TRAVIS_REPO_SLUG.git publish 2>&1 > /dev/null
+cd publish
+
+# Update pages
+cp -r $REPO_PATH/dist/* .
+
+# Commit and push latest version
+git add .
+git config user.name  "Travis"
+git config user.email "[email protected]"
+git commit -m "Updated distribution."
+git push -fq origin $PUBLICATION_BRANCH 2>&1 > /dev/null
+popd