Improve debian build and put together a package.

Improve debian build and put together a package.

* Makefile (debclean): New target that cleans up the mess that the
  `debian' target makes.
  (debian): Build using debuild rather than dpkg-buildpackage.  Copy
  results to my debian dist dir two levels up.

* Makefile.defs (VERSION): Set to 3.01.90.arch.149 for the debian build.

* debian/changelog: Sign 3.01.90.arch.149-1 snapshot.

* debian/control (Standards-Version): Update to 3.6.2.

* debian/control (Depends): Add emacs21 and xemacs21 to make lintian shut
  up.

* debian/copyright (Copyright): Improve.

* debian/emacsen-install (FILES): Include contrib directory so that
  muse-http.el compiles properly.

* debian/muse-el.examples: New file containing the example files to
  install.

* debian/rules: Move example stuff to muse-el.examples.  Install some
  additional documentation.
git-archimport-id: mwolson@gnu.org--2005/muse--main--1.0--patch-150