Work in progress, keeping avatars locally

This introduces a new model to store the avatars and 3 uploads per user (gravatar, system and custom)

user can then pick which they want.

app/serializers/basic_user_serializer.rb

@@ -1,7 +1,26 @@
 class BasicUserSerializer < ApplicationSerializer
-  attributes :id, :username, :avatar_template
+  attributes :id, :username, :uploaded_avatar_id, :avatar_template
 
   def include_name?
     SiteSetting.enable_names?
   end
+
+  # so weird we send a hash in here sometimes and an object others
+  def include_uploaded_avatar_id?
+    SiteSetting.allow_uploaded_avatars? &&
+      (Hash === object ? user[:uploaded_avatar_id] : object.uploaded_avatar_id)
+  end
+
+  def avatar_template
+    if Hash === object
+      User.avatar_template(user[:username], user[:uploaded_avatar_id])
+    else
+      object.avatar_template
+    end
+  end
+
+  def user
+    object[:user] || object
+  end
+
 end