Bug#324109: allow Packages file to specify downloads from other hosts

[Robert Millan <rmh@aybabtu.com>]

Package: apt
Version: 0.6.40.1
Severity: wishlist

Please, could you allow for Packages file to specify that a package should be
downloaded from a specific host, not necessarily the one we got Packages.gz
from?

The "Filename:" tag could be used for that.  For example:

  Filename: http://ftp.debian.org/debian/pool/main/3/3dchess/3dchess_0.8.1-11_i386.deb

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.11-1-k7
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)

Versions of packages apt depends on:
ii  libc6                         2.3.5-3    GNU C Library: Shared libraries an
ii  libgcc1                       1:4.0.1-5  GCC support library
ii  libstdc++6                    4.0.1-5    The GNU Standard C++ Library v3

apt recommends no packages.

-- no debconf information