first try to migrate to lb 3
fixed syslinux entries (?)
First commit for theodoric branch

Modifications are done mainly to adapt to lb 3.0
No need of backports (yet)
The iso builds, but is not much useful at the moment.
Added apt-proxy option
new live installer udeb
Adapted for live build 3.0 and wheezy, options reordinated and cleaned. Deutsche repositories are more reliable than italian ones.
Added build direcotry (live build 3.0)
Added options for the live installer
Added lock direcotry to .gitignore file
Renamed to comply with live-build 3.0 folder syntax
Trivial commit
removed all software to start with a fresh, new environment
Changed distribution on lists
merged from lb-3
Removed apt-cacher-ng prefix from sources, override by --apt-proxy option in auto/config
Adapted for lb 3.x and theodoric
Avoiding duplicate packages in iso image
Changed options lost during merge
Re-added preseed for d-i
Changed preseed file according to lb 3.x new directory standard