feat: introduce travis build stages

Author: oriondean

.travis.yml

@@ -9,6 +9,22 @@ before_script:
 script:
 - npm run build:prod
 - if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then npm run test; fi
+jobs:
+  include:
+    - stage: build
+      script:
+        - npm run build:prod
+    - stage: test
+      script:
+        - if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then npm run test; fi
+    - stage: deploy
+      deploy:
+        on:
+          branch: master
+        provider: script
+        skip_cleanup: true
+        script:
+          npx semantic-release
 branches:
   except:
   - "/^v\\d+\\.\\d+\\.\\d+$/"