[Emacs] Update some light colorscheme faces.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] Don't jump to errors when installing packages.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] Move to ac-slime package.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>