Merge branch 'issue/282' into 'master'

SCRUM#282: fixing return role_ids from users

See merge request !462

app/serializers/user_serializer.rb

@@ -37,7 +37,7 @@ class UserSerializer < ActiveModel::Serializer
   end
 
   def role_ids
-    object.roles.ids
+    object.roles.all.ids
   end
 
   attributes \