DEV: more send -> public_send changes

This is a work in progress commit for more send to public_send conversions

Also adds some comments for cases where we need to keep send

app/controllers/list_controller.rb

@@ -248,7 +248,7 @@ class ListController < ApplicationController
   def top(options = nil)
     options ||= {}
     period = ListController.best_period_for(current_user.try(:previous_visit_at), options[:category])
-    send("top_#{period}", options)
+    public_send("top_#{period}", options)
   end
 
   def category_top