Add Upstream

git-svn-id: http://ns2/svnsrc/distro/nettle/nettle-2.5@2247 a03fbada-158d-47ef-9f12-77e997805b15
Dont build html/pdf docs needs tex

git-svn-id: http://ns2/svnsrc/distro/nettle/nettle-2.5@3577 a03fbada-158d-47ef-9f12-77e997805b15
Copy config.sub from AM 1.13

git-svn-id: http://ns2/svnsrc/distro/nettle/nettle-2.5@3922 a03fbada-158d-47ef-9f12-77e997805b15