core/packs/pack-mail.el: Drop gnusnotes, update to new Gnus

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
users/algernon/fullscreen.el: Emacs 24.4 support

Use modify-frame-parameters, works fine with Emacs 24.4, and we won't
need wmctrl anymore.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
users/algernon[@eowyn]: Config update

Always set up the theme, Emacs is launched by systemd with emacs
--daemon. Also add supercite config, because that looks cool. This
latter one fixes #2.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>