Create two separate workflows for circleci. (#1082)

Workflow that deploys requires a git tag to run. Adding a tag filter
would require all other tasks to have a tag as well. Splitting into two
workflows, the build-test flow can work on all other branches/commits
while build-test-deploy only works when a git tag matching vX.X.X is pushed.

.circleci/config.yml

@@ -130,7 +130,7 @@ jobs:
             git push https://heroku:$HEROKU_API_KEY@git.heroku.com/ifme.git master
 workflows:
   version: 2
-  build-deploy:
+  build-test:
     jobs:
       - setup-coverage
       - build:
@@ -139,9 +139,30 @@ workflows:
       - upload-coverage:
           requires:
             - build
+  build-test-deploy:
+    jobs:
+      - setup-coverage
+      - build:
+          requires:
+            - setup-coverage
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+/
+      - upload-coverage:
+          requires:
+            - build
+          filters:
+            branches:
+              ignore: /.*/
+            tags:
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+/
       - deploy:
           requires:
             - upload-coverage
           filters:
             branches:
-              only: master
+              ignore: /.*/
+            tags:
+              only: /^v[0-9]+\.[0-9]+\.[0-9]+/