Adding a between scope to Version to see if any changes happened during a period

lib/paper_trail/version.rb

@@ -20,6 +20,10 @@ class Version < ActiveRecord::Base
     where(['created_at > ?', timestamp]).order("created_at ASC, #{self.primary_key} ASC")
   }
 
+  scope :between, lambda { |start_time, end_time|
+    where(['created_at > ? AND created_at < ?', start_time, end_time ]).order("created_at ASC, #{self.primary_key} ASC")
+  }
+
   # Restore the item from this version.
   #
   # This will automatically restore all :has_one associations as they were "at the time",