Add support for codecov.io

Author: AndrewJo

circle.yml

@@ -7,4 +7,10 @@ machine:
 checkout:
   post:
     - git config user.email "support@verdigris.co"
-    - git config user.name "Verdigris Technologies"
+    - git config user.name "Verdigris Technologies"
+
+deployment:
+  codecov:
+    branch: /.*/
+    commands:
+      - bash <(curl -s https://codecov.io/bash)