gnus: customize fonts

For summary faces :
 - reduce font height to 80%
 - all inherit from gnus-summary-root font

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
gnus: score tremendously interesting limit

Increase the tremendously interesting limit to 1000.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
lang: add automatic compilation commands

Add an automated way of compiling. The first client is the linux kernel
compilation, which :
 - happens in kernel top directory
 - uses the architecture deduced from .config

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
elisp: mioa701: integrate device-control changes

Integrate :
 - automatic mode
 - new dctrl-actions handling
 - new dctrl-barebox-action-* required return values
 - barebox commander tty argument

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
device-control-barebox: integrate tty device argument

Integrate tty device in barebox_commander.sh call.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
site-elisp: update packages to latest version

Update to latest version :
 - device_control
 - magit (requires additional commits for magit-status
   limitation of number of commits)
 - rscope : last version

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
elisp: work: intel: remove device-control-barebox

As it was transfered to device-control github, it is not
necessary anymore to keep it.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>