Commit Briefs
initialize events: prevents libevent2 from crashing
clechoev and resizeev are two globally defined event, and thus guaranteed to be zeroed. While OpenBSD' libevent1 is fine when calling event_pending on such events, libevent2 complains and, probably depending on which flags were used, crashes. Prompted and tested by Andrea Feletto, thanks!
sue SIGSTOP instead of SIGTSTP
maybe in the future we'll try to handle SIGTSTP?