Make identityPullAvatarFromGravatar automatically generated

ticket https://code.vereign.com/code/dashboard/issues/469

The branch value should be set back to master before merge

  branch = "master" <---
  branch = "469-fix-pull-gravatar-refactoring"

Gopkg.toml

@@ -25,7 +25,7 @@
 #   unused-packages = true
 
 [[constraint]]
-  branch = "469-fix-pull-gravatar-refactoring"
+  branch = "master"
   name = "code.vereign.com/code/restful-api"
 
 [prune]