mesa: Changes to '7.1'

[Thierry Reding <beatle-guest@alioth.debian.org>]

New branch '7.1' available with the following commits:
commit a6e9f61e37f66f3bbdd052ab8a3e172c3151d6d2
Author: Drew Parsons <dparsons@debian.org>
Date:   Sat Aug 19 12:29:06 2006 +0000

    All dbg packages in lib should have priority extra,
    see http://lists.debian.org/debian-devel/2006/08/msg00737.html

commit 103bc3282c08b9f3925e4d327a1bc8fa77af2217
Author: Branden Robinson <branden@debian.org>
Date:   Mon Jul 31 22:17:13 2006 +0000

    Continue prematurely-closed open season on directory names with embedded
    version information.  I missed these earlier because they do not match
    "X11R7".
    
    Remove Mesa 6.4.1 directory; no commits had been made to it since the
    branch was created, and Mesa 6.5 is newer.