Add initial files for de-DE translation
Add README for de-DE translation
Merge branch 'squeeze/master' of git+ssh://git.debian.org/git/debian-handbook/debian-handbook into squeeze/master
added de-DE/00a_preface.po
it-IT: completed chapter 1, still to be reviewed
Add initial files for ar-MA translation
Add README for ar-MA translation
Updated ar-MA translation
Initial translation of prface for de-DE translation
Initial translation of case study for de-DE translation
Initial translation of book_info for de-DE translation
upgrade README for de-DE translation
ro-RO: Translated Chapter 02: Presenting the Case Study.
ro-RO: README for contributors.
it-IT: updated chapters 00b and 01
it-IT: updated chapters 90 and Book_info
it-IT: updated chapters 90 and Book_info
it-IT: updated chapters 4
Misc improvements to chapters 5, 6, and 7

Reported-by: "Francesco Poli (wintermute)" <invernomuto@paranoici.org>
List amd64 as possible architecture for computers running MacOS

Recent Macs have 64 bit processors from Intel that can run
Debian's amd64 architecture.

Signed-off-by: Raphaël Hertzog <hertzog@debian.org>