fix hot constants listener

lib/hot/constants.rb

@@ -59,7 +59,7 @@ module Hot
         end
 
         HOTENV.replace new_env
-        # LISTENERS.each_pair { |k, b| perform_change(k, b) }
+        LISTENERS.each_pair { |k, b| perform_change(k, b) }
       end
 
       def on_change(key, &block)

lib/hot/live.rb

@@ -2,7 +2,7 @@ module Hot
   # Hot Live constants
   class Live
     def initialize
-      puts 'initialized'
+      puts 'Hot Live constants initialized'
     end
   end
 end