Merge branch 'winh-exclude-locale-coverage' into 'master'

Exclude translations from coverage report

See merge request gitlab-org/gitlab-ce!16348

.babelrc

@@ -8,7 +8,8 @@
       "plugins": [
         ["istanbul", {
           "exclude": [
-            "spec/javascripts/**/*"
+            "spec/javascripts/**/*",
+            "app/assets/javascripts/locale/**/app.js"
           ]
         }],
         ["transform-define", {