init the awkward code

static/html/jspaint/.travis.yml

@@ -0,0 +1,22 @@
+language: node_js
+node_js:
+  - 10
+addons:
+  apt:
+    packages:
+      # Ubuntu 16+ does not install this dependency by default, so we need to install it ourselves
+      - libgconf-2-4
+cache:
+  # Caches $HOME/.npm when npm ci is default script command
+  # Caches node_modules in all other cases
+  npm: true
+  directories:
+    # we also need to cache folder with Cypress binary
+    - ~/.cache
+install:
+  - npm ci
+before_script:
+  - npm run test:start-server &
+  - sleep 3 # hopefully the server will be listening by then
+script:
+  - npm run lint && npm run cy:run