Also run rubocop

@@ -7,12 +7,22 @@ stages:
   - build
   - test
 
-rspec:
+rubocop:
   stage: build
   script:
-    - rspec --color
+    - gem install rubocop
+    - rubocop
+  only:
+    - master
+    - development
+  tags:
+    - docker
+rspec:
+  stage: test
+  script:
     - rake spec
   only:
     - master
+    - development
   tags:
     - docker