make caretaker to use the new irc_nick field to recognize accounts
make caretaker to use the new irc_nick field to recognize accounts

hemberger/smr,gamedevforks/smr,tmaus/smr,smrealms/smrv2.0,Curufir/smr,hemberger/smr,hemberger/smr,gamedevforks/smr,smrealms/smrv2.0,smrealms/smr,gamedevforks/smr,gamedevforks/smr,smrealms/smrv2.0,smrealms/smrv2.0,Curufir/smr,smrealms/smr,Curufir/smr,smrealms/smr,hemberger/smr,tmaus/smr