Exotherm - Investigating disconnection

For quite a while, I've been planning to look more into why Exotherm (deployed as "mercuric") disconnects from the FICS after a few hours. Today I finally did something about it: in case the disconnection is due to a crash, I added a bit of code to log any errors to a file before exiting. The bot will probably have fallen over by morning - then I can check the log to see if a bug is causing it to crash.