first hack at telnet
free a failed-accept http conn asynchronously
further telnet hacks

make C-d on an empty telnet terminal do nothing, don't suck in CRs
close terminals properly
reorg tty struct
terminal hole card
Don't overload the hole card
crash less often with dead terminals
remove wipe, change boil
minor cleanups
Squashed 'outside/anachronism/' content from commit 02fa3b0

git-subtree-dir: outside/anachronism
git-subtree-split: 02fa3b064112fa1d75209f123c07b5c7d58329b7
Merge commit '7536d1406f7a2d8919b0a04f1ff5edcbddc9019a' as 'outside/anachronism'
partially negotiate char-at-a-time telnet mode
negotiate about window size properly
default telnet windows to 80x25
reorder blew
update pill
Merge remote-tracking branch 'urbit/nextbreach' into telnet

Conflicts:
	Makefile
	urb/urbit.pill
	urb/zod/arvo/gall.hoon
Their gall, a new pill, and our makefile.
move dill tiles to dill.hoon