- Add release script
- Simplify print_version

-h should exit with success
Update manpages

if (connecting || ptys || x11) tos = LOWDELAY;
else if (tcp_forwards) tos = 0;
else tos = BULK;

TCP forwards could be either lowdelay or bulk, hence the default priority.

connection backlog, avoid check_close() for channels that haven't had IO

auth requests). Regresssion in ff597bf2cfb0

EAGAIN but always saves a select() - needs testing with bandwidth-limited
and CPU-limited situations.

system clock changes

While at it, fix a few indentations and typo.

be more precise about maximum channel sizes

- Fix port forwards with a bind address of 127.0.0.1 vs "localhost" etc