Document circuit abstraction, completely

We should document how exactly circuits work as a part of our overall documentation efforts.

changed milestone to %Tor: unspecified

added archaeology component::core tor/tor milestone::Tor: unspecified points::5 priority::medium severity::normal sponsor::U-can status::new technical-debt tor-doc-modules tor-docs-dev type::defect labels

Trac:
Sponsor: N/A to SponsorU-can

Trac:
Owner: nickm to N/A
Status: new to assigned

Put all unowned "assigned" tickets back into "new".

Trac:
Status: assigned to new

Trac:
Keywords: N/A deleted, isaremoved added
Milestone: Tor: 0.2.9.x-final to Tor: 0.2.???

Trac:
Parent: #14683 (moved) to N/A

Milestone renamed

Trac:
Milestone: Tor: 0.2.??? to Tor: 0.3.???

Finally admitting that 0.3.??? was a euphemism for Tor: unspecified all along.

Trac:
Keywords: N/A deleted, tor-03-unspecified-201612 added
Milestone: Tor: 0.3.??? to Tor: unspecified

Remove an old triaging keyword.

Trac:
Keywords: tor-03-unspecified-201612 deleted, N/A added

Trac:
Keywords: isaremoved deleted, N/A added

Trac:
Keywords: N/A deleted, tor-doc-modules, technical-debt, archaeology, tor-docs-dev added
Points: 2 to 5

changed time estimate to 40h

moved to tpo/core/tor#19286 (closed)