add DefaultOff option to RenderFont resource, as part of
the session-management feature.
add auto-scroll-lock feature (patch by add Stelios Bounanos).
update the window-size information returned via TIOCGWINSZ when
rows/columns are unchanged but the font-size changes (report by Nick Black).
improve session-management feature by saving/restoring the font settings.
update config.guess, config.sub
Signed-off-by: Zheng Ruoqin <zhengrq.fnst@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>