Add 'flags' argument to begin cells, per proposal 208.

We'd like these functions to be circuit-relative so that we can
implement a per-circuit DNS cache and per-circuit DNS cache rules for
proposal 205 or its successors.  I'm doing this now, as a part of the
IPv6 exits code, since there are about to be a few more instances
of code using this.

Fixes a bug (with no ticket) on 0.2.4.6-alpha.

Fix a harmless bug when opting against publishing a relay descriptor
because DisableNetwork is set.

Fixes bug 7464; bugfix on 0.2.3.9-alpha.

This is the simplest possible workaround: make it safe to call
circuit_cell_queue_clear() on a non-attached circuit, and make it
safe-but-a-LD_BUG-warning to call update_circuit_on_cmux() on a
non-attached circuit.

 LocalWords:  unstage src Untracked

Add changes file for connection_mark_for_close()/connection_mark_and_flush() or_connection_t checking

Make everything in connection.c that uses connection_or_notify_error() also use connection_mark_and_close_internal() to avoid spurious warnings

Check for orconns in connection_mark_for_close and connection_mark_and_flush, and pass the call through channel_close_for_error with a warning to avoid asserts

Looks like windows doesn't have an s6_addr32 in its in6_addr.

Bug not in any released version of Tor; bugfix on abb88601.

It broke linking on tor-resolve.c, and it's not actually sanitizing
anything sensitive.  Fix for bug 7420; bug not on ony released Tor.

Conflicts:
	src/common/crypto.c
	src/or/rendservice.c

Apparently some compilers like to eliminate memset() operations on
data that's about to go out-of-scope.  I've gone with the safest
possible replacement, which might be a bit slow.  I don't think this
is critical path in any way that will affect performance, but if it
is, we can work on that in 0.2.4.

Fixes bug 7352.

Instead of warning about low ports that are advertised, we should have
been warning about low ports that we're listening on.  Bug 7285, fix
on 0.2.3.9-alpha.

That's not where I'd want to put a $, but apparently the other
foo/id/<identity> things allow it, as does an arguably valid
interpretation of control-spec.txt.  So let's be consistent.

Fix for a piece of bug 7059.

(How many "load a file" functions do you typically see where the
function frees the filename argument?)

Conflicts:
	src/or/geoip.c