use SSL on IRC backend

source/backends/irc.rb

@@ -113,6 +113,8 @@ module Backend_IRC
                cfg.password   = info[:pass]     if info.key? :pass
                cfg.modes      = info[:modes]    if info.key? :modes
                cfg.channels   = info[:channels] if info.key? :channels
+               cfg.ssl        = true
+               cfg.ssl.verify = true
                cfg.realname   = "vrobot4"
                cfg.user       = "vrobot4"
                cfg.message_split_start = "… "