Moved the source to git

[Michael Vogt <mvo@debian.org>]

Dear Friends,

due to popular demand we recently moved the apt source code from bzr
to git. The new location of the repository is:

"""
Anonymous Git Access

git clone http://anonscm.debian.org/git/apt/apt.git
git clone git://anonscm.debian.org/apt/apt.git

Developer GIT Access via SSH

git clone git+ssh://$USER@git.debian.org/git/apt/apt.git
"""
(see: https://alioth.debian.org/scm/?group_id=31152)


The history and tags got imported from bzr, there are currently three
branches: debian/{sid,wheezy,experimental}

It should build fine with git-buildpackage, it will create the
build-tree and the debs in ../build-area (just like with the previous
bzr-buildpackage).

Please let me know if you notice any issues from the move and thanks
to Guillem and Julian for their fixes to make the repo size more
manageable.

Cheers,
 Michael