These were previously allowed only in the initial position:
  --help, -h , --version, --digests, --list-torrc-options

Fix for bug 9578.

(Using "ours" strategy to avoid taking 9546 fix in 0.2.3; we just
merged our own into 0.2.4)

There were only two functions outside of circuitstats that actually
wanted to know what was inside this.  Making the structure itself
hidden should help isolation and prevent us from spaghettifying the
thing more.

(These have proved invaluable for other global accessors.)

vagrant authored Aug 21, 2013 and Nick Mathewson committed Aug 22, 2013

Change the global circ_times to a static variable and use
accessor functions throughout the code, instead of
accessing it directly.

Fix for bug 9564; bugfix on 0.2.3.14-alpha.

Peter Retzlaff authored Jun 12, 2013 and Nick Mathewson committed Aug 21, 2013

Implements ticket 5526.

Fix for bug 9543.

The spec requires them to do so, and not doing so creates a situation
where they can't send-test because relays won't extend to them because
of the other part of bug 9546.

Fixes bug 9546; bugfix on 0.2.3.6-alpha.

The spec requires them to do so, and not doing so creates a situation
where they can't send-test because relays won't extend to them because
of the other part of bug 9546.

Fixes bug 9546; bugfix on 0.2.3.6-alpha.

(Backport to Tor 0.2.3)

Relays previously, when initiating a connection, would only send a
NETINFO after sending an AUTHENTICATE.  But bridges, when receiving a
connection, would never send AUTH_CHALLENGE.  So relays wouldn't
AUTHENTICATE, and wouldn't NETINFO, and then bridges would be
surprised to be receiving CREATE cells on a non-open circuit.

Fixes bug 9546.

Relays previously, when initiating a connection, would only send a
NETINFO after sending an AUTHENTICATE.  But bridges, when receiving a
connection, would never send AUTH_CHALLENGE.  So relays wouldn't
AUTHENTICATE, and wouldn't NETINFO, and then bridges would be
surprised to be receiving CREATE cells on a non-open circuit.

Fixes bug 9546.

Conflicts:
	src/or/circuitlist.h