Variables:
EXECDIR                    Home of relaybot.sh and all the modules + static data
DATADIR                    Home of things like messages to relay

Functions:
addcmd <command> <function>
delcmd <command> <function>
addeventhandler <event> <function>
deleventhandler <event> <function>
handleevent <event> <data...>
toggle_cammode <mode>

Command functions are called as <function> <from> <parameters>

Events commonly pass along the following parameters:
chatmsg <msg> <from> (<color>, if applicable>)
join <nickname>
part <nickname>
camup <nickname>