teleirc might spam IRC channels with error messages

[hashworks]

When a large amount of messages arrive (f.e. the buffer of a ZNC bouncer) and no GroupID is received yet teleirc will spam the channel with error: No chat_id set! Add me to a Telegram group and say hi so I can find your group's chat_id!, resulting in a kick or even a ban.

IMHO error messages should never be relayed to the IRC channel, especially when config.soloUse is active. At the very least this should be rate limited and/or configurable.