Merge pull request #2 from omsmith/version-matrix

build, deploy: update node versions

.travis.yml

@@ -1,15 +1,18 @@
 sudo: false
 language: node_js
 node_js:
-- iojs
 - '0.12'
+- 4
+- 6
+- 8
+- 10
 after_success: npm run report-cov
 deploy:
   provider: npm
   email: d2ltravisdeploy@d2l.com
   api_key:
     secure: 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
   on:
-    all_branches: true
     tags: true
     repo: Brightspace/node-jwk-allowed-algorithms
+    node: 10