build(travis): add travis yaml

Author: jaebradley

.travis.yml

@@ -0,0 +1,24 @@
+language: node_js
+cache:
+  directories:
+    - ~/.npm
+notifications:
+  email: true
+node_js:
+  - '8'
+before_install:
+  - npm install -g npm@5
+  - npm install -g greenkeeper-lockfile@1
+before_script: greenkeeper-lockfile-update
+after_script: greenkeeper-lockfile-upload
+script:
+  - npm run lint
+  - npm run test
+  - npm run build
+after_success:
+  - npm run travis-deploy-once "npm run semantic-release"
+  - npm run codecov
+  - if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then npm run deploy-storybook-ci; fi
+branches:
+  except:
+  - /^v\d+\.\d+\.\d+$/