Merge pull request #786 from Shopify/add-notifications-for-slack

Add Travis CI notifications for Slack

.travis.yml

@@ -9,3 +9,12 @@ script:
 - yarn bootstrap
 - yarn test
 - yarn lint
+notifications:
+  email: false
+  slack:
+    secure: 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
+    on_success: change
+    on_pull_requests: false
+    template:
+      - "%{repository_slug} (%{commit}) : %{message}"
+      - "Build details: %{build_url}"