Debian packaging fixes.

- Split gitk off to its own package;
  it needs tk installed, but nothing else does.
- Refer to GPL properly, don't install COPYING.
- Fix maintainer.
- Use dh_movefiles instead of dh_install;
  we don't want to list everything *except* gitk.

Signed-off-by: Junio C Hamano <junkio@cox.net>

debian/copyright

@@ -1,3 +1,24 @@
-License: 
+This package was downloaded from ftp.kernel.org:/pub/software/scm/git/.
 
-GPL v2 (see COPYING for details)
+Upstream Author: Linus Torvalds and many others
+
+Copyright:
+
+ Copyright 2005, Linus Torvalds and others.
+ 
+   This package is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 dated June, 1991.
+
+   This package is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this package; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.
+
+On Debian GNU/Linux systems, the complete text of the GNU General
+Public License can be found in `/usr/share/common-licenses/GPL'.