Ruby 1.9 compatibility fix. With 1.9 Object.instance_methods returns …

…symbols instead of strings. Altered logic appropriately to support both.

lib/hoptoad_notifier.rb

@@ -213,7 +213,7 @@ def add_default_filters
   module Catcher
 
     def self.included(base) #:nodoc:
-      if base.instance_methods.include? 'rescue_action_in_public' and !base.instance_methods.include? 'rescue_action_in_public_without_hoptoad'
+      if base.instance_methods.map(&:to_s).include? 'rescue_action_in_public' and !base.instance_methods.map(&:to_s).include? 'rescue_action_in_public_without_hoptoad'
         base.send(:alias_method, :rescue_action_in_public_without_hoptoad, :rescue_action_in_public)
         base.send(:alias_method, :rescue_action_in_public, :rescue_action_in_public_with_hoptoad)
       end