[Emacs] Remove nxhtml.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] Update slime.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Xmonad] Use pretty names for volume keys.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Xmonad] Use toggle instead of play+pause for mpd.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] Add macrostep.

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