Implement prop#249 "Large Create Cells"

As part of legacy/trac#24985 (moved), we'll need to implement prop#249's design for large create cells.

changed milestone to %Tor: unspecified in legacy/trac

added 034-included-20180328 in Legacy / Trac 034-roadmap-master in Legacy / Trac 034-triage-20180328 in Legacy / Trac 035-roadmap-master in Legacy / Trac 035-triaged-in-20180711 in Legacy / Trac component::core tor/tor in Legacy / Trac milestone::Tor: unspecified in Legacy / Trac parent::24985 in Legacy / Trac points::8 in Legacy / Trac priority::medium in Legacy / Trac severity::normal in Legacy / Trac sponsor::3 in Legacy / Trac status::new in Legacy / Trac tor-cell in Legacy / Trac tor-circuit in Legacy / Trac trunnel in Legacy / Trac type::enhancement in Legacy / Trac labels

Trac:
Cc: N/A to dgoulet, isis, nickm

Trac:
Keywords: tor-cell tor-circuit trunnel deleted, tor-cell tor-circuit trunnel 034-roadmap-master added

Trac:
Keywords: tor-cell tor-circuit trunnel 034-roadmap-master deleted, 034-roadmap-master, trunnel, 034-triage-20180328, tor-cell, tor-circuit added

Trac:
Keywords: N/A deleted, 034-included-20180328 added

These are still worth doing, but I don't see them as likely to happen before our freeze in 4 days, and nobody is currently assigned to them. Deferring them to 0.3.5

Trac:
Milestone: Tor: 0.3.4.x-final to Tor: 0.3.5.x-final

Trac:
Keywords: N/A deleted, 035-roadmap-master added

Trac:
Keywords: N/A deleted, 035-triaged-in-20180711 added

Trac:
Cc: dgoulet, isis, nickm to dgoulet, isis, nickm, dmr

We won't get PQ or wide-create done in this release. :/

Trac:
Milestone: Tor: 0.3.5.x-final to Tor: unspecified

changed time estimate to 64h

mentioned in issue legacy/trac#24987 (moved)

mentioned in issue legacy/trac#24988 (moved)

mentioned in issue legacy/trac#25651 (moved)

mentioned in issue legacy/trac#25655 (moved)

mentioned in issue legacy/trac#25656 (moved)

moved from legacy/trac#24986 (moved)

added Feature label and removed 1 deleted label

added Tooling label and removed 1 deleted label

Closing in favor of the wide-everything proposal (319)

closed