add release target

few more tweaks to the site for 0.9

add the keys (previous and one future)

more tweaks to the site for 0.9

ev: add explicit check min can't possibly be un-initialized, since poll(2) returns zero only when the timeout expires. However, this should please some checkers (looking at you, fortify/string.h!) and doesn't cost anything.

improve telescope.1

about:license: compact the entries for the Regents

improve about:crash

mention client certificates in about:help and other minor tweaks

telescope.1: remove the text-wrapping CAVEAT not that we're particularly smart now, but libgrapheme gives us a nice result in the scripts I tried.

ev: style tweak for cancel_timer() in case i == base->ntimers bubbledown() won't do anything, but it's still better to pass an index that we know is valid.

decouple bufio from ev more a matter of cleanliness than a strong reason, but this allows to reuse bufio without ev (if wanted to.)

net: initialize fds earlier

net: use a single timer for asr and handshake timeout

ev: protect from timers that delete themselves delete the timer before running the callback: code in net.c may end up deleting the current timer from the timer' callback.