* make reconnect messages warn

ruby/lib/jam_ruby/amqp/amqp_connection_manager.rb

@@ -64,7 +64,7 @@ module JamRuby
     def on_recovery(conn, settings)
       @connected = true
 
-      @log.debug "reconnected #{conn} #{settings}"
+      @log.warn "reconnected #{conn} #{settings}"
 
       #puts "#channel before #{@channel}"
       #puts "recovered channel: #{@channel.reuse}"