update registry reference for circle

This change should allow tests to pass on PRs from forks

And fix #8

Author: ABaldwinHunter

circle.yml

@@ -4,6 +4,7 @@ machine:
   environment:
     CLOUDSDK_CORE_DISABLE_PROMPTS: 1
     image_name: codeclimate-fixme
+    REGISTRY_ROOT: us.gcr.io/code_climate
 
 dependencies:
   pre:
@@ -14,10 +15,10 @@ dependencies:
 
 test:
   override:
-    - docker build -t=$registry_root/$image_name:b$CIRCLE_BUILD_NUM .
+    - docker build -t=$REGISTRY_ROOT/$image_name:b$CIRCLE_BUILD_NUM .
 
 deployment:
   registry:
     branch: master
     commands:
-      - docker push $registry_root/$image_name:b$CIRCLE_BUILD_NUM
+      - docker push $REGISTRY_ROOT/$image_name:b$CIRCLE_BUILD_NUM