restore composer.json, add mysqli extension

public/vendor/editor/.travis.yml

@@ -0,0 +1,33 @@
+dist: xenial
+os: linux
+language: node_js
+node_js: 10
+cache:
+  directories:
+    - node_modules
+before_install:
+- sudo add-apt-repository ppa:fontforge/fontforge -y
+- sudo apt-get update -q
+- sudo apt-get install fontforge ttfautohint -y
+before_script:
+- node --version
+- npm --version
+script:
+- npm run test:ci
+before_deploy:
+- npm install
+- npm run build
+- npm run dist
+deploy:
+  provider: npm
+  email: susukang98@gmail.com
+  api_token:
+    secure: TYJfuTLZKbYvTskuMlmuKnQb5F35GFPN2AqSf0RtZYWGLozIaIkKcpTVbjzo859FWuxPjci53FGiJih3+0iVfIC39CDTrFZutubn8qduOfRAVTL1WzeQvdww8miJNwUY59HmoOa78OtbNCVg/N7zFSZzRXAcgje8IADQFIISwk8=
+  on:
+    tags: true
+    branch: develop
+addons:
+  sauce_connect:
+    username: 'summernoteis'
+after_success:
+- npm run coveralls