Merge pull request #1 from frontseed/chore/add-ci

ci: Set up a CD pipeline with Travis

Author: attila

.travis.yml

@@ -0,0 +1,20 @@
+language: node_js
+
+cache:
+  directories:
+    - ~/.npm
+    - node_modules
+
+notifications:
+  email: false
+
+node_js:
+  - '10'
+  - '8'
+
+after_success:
+  - npx travis-deploy-once "npx semantic-release"
+
+branches:
+  except:
+    - /^v\d+\.\d+\.\d+$/