debian/: Overhaul and fix build arrangements.

[skel] / debian / rules

#! /usr/bin/make -f
%:; dh $@ --parallel -Bdebian/build

override_dh_auto_configure:
        dh_auto_configure -- --with-lispdir=/usr/share/emacs/site-lisp

override_dh_auto_build:
        make -Cdebian/build skel.el

override_dh_auto_install: