compat.h: provide __dead

ev: simplify heap management make ev_timer always use the ``reserve'' space and heapify at the start of the event loop tick. Bonus points for using the better algorithm and remove the unused bubbleup.

ev_timer_cancel: return -1 when not found

ev: fix/improve cancel_timer and ev_timer_cancel we only reach cancel_timer() for timers in the hap, so delete the unreachable code, and improve what we have. When deleting from the reserve space, just move the last element in the place of the removed one, no need to move everything. It'll be heapified later anyway.

ev: fix corruption in bubbledown tmp is of the wrong size, so we memcpy the wrong values. fun.

ev: fix two off-by-one in bubbledown

reset timer id after cancelling it

add a paranoic check

add missing return otherwise we try to reschedule the socket we've just closed.

sync changelog

remove the libevent check

convert telescope to use ev instead of libevent libevent is a very cool library, I like the APIs and enjoy using it. However, telescope is not as large and doesn't have as many file descriptor, so libevent is quite ``too big'' for our needs. ev started as a small event loop on top of poll(2) for amused, and can be used here too, it just needed to grow the ability to handle several timers, as we need quite some on telescope (in fact, we use more timers than fds!)

bufio: add bufio_drain()

bufio: add bufio_handshake to control the TLS handshake

bufio: fix bufio_read for TLS