util.timer: When using libevent hold onto the event handle to stop it being collected (and the timer stopping). Fixes BOSH ghosts, thanks Flo, niekie, waqas.
util.timer: When using libevent hold onto the event handle to stop it being collected (and the timer stopping). Fixes BOSH ghosts, thanks Flo, niekie, waqas.

sarumjanuch/prosody,sarumjanuch/prosody