Merge tag 'upstream/17.0'

Upstream version 17.0

# gpg: Unterschrift vom Sa 24 Nov 2012 19:07:48 EST mittels RSA-Schlüssel ID A74420EF
# gpg: Korrekte Unterschrift von "Christoph Goehre <christoph.goehre@gmx.de>"
# gpg:                     alias "Christoph Goehre <chris@sigxcpu.org>"
rebuild patch queue from patch-queue branch

modified patches:
0001-rebrand-all-language-packs.patch
0002-sl-change-Edit-Uredi-to-CTRL-E.patch
0003-disable-extension-update-extension-is-managed-by-apt.patch
adjust icedove depends to >= 17.0 and <= 17.1
document changes and release 1:17.0-1
changing download url for xpi files

mirror.switch.ch not longer supporting mirroring mozilla files

this is cherry-picked from 19d192ace7214409762244815987975298686aa8
adding option to get .tar.gz archives