* Adds ASCII logs useful to portudino
Activates ASCII log option when stdout is not a terminal. This is
generally the right thing to do; if not, the behavior can be
overridden in config.yaml using AsciiLogs under Logging. The result
is reasonable system logs for portudino when running under systemd or
the like.
Signed-off-by: Christopher Hoover <ch@murgatroid.com>