Using same logic to create the source/.disk/archive_trace for binary/.disk/archive_trace too (Closes: #774200).

Previously, we needed to keep the lb_* prefix as the scripts
could also be executed standalone. Since the lb wrapper is
mandatory since squeeze, we can drop this now.

Fixing up inclusion of functions while allowing local usage of live-build with different file layouts.

Correcting destination path for uuid.conf when using casper in binary_disk, thanks to Luigi Capriotti <l.capriotti@xbmc.org> (Closes: #658995).

Correcting lzcat call in binary_disk to not bail out due to non-standard file extension (unknown suffix -- unchanged), thanks to Luigi Capriotti <l.capriotti@xbmc.org> (Closes: #658995).

This is the first step in conglomerating code for all hdd-ish
image types, independent of the partitioning scheme being used,
and adding future hdd-ish image types for virtualiziation software.

Using 'live' rather than 'incomplete' for cd_type in .disk on images that include debian-installer with live-installer udeb.

Correcting uuid extraction from initrds in ubuntu mode to work from within binary so that it is cleaned up by lb_clean on failed builds.

Calling mkdir with -p to avoid build failures with multiple kernels on disk info in ubuntu mode, thanks to Cody A.W. Somerville <cody.somerville@canonical.com>.

Adding kubuntu mode in order to have different defadefault hooks enabled for ubuntu and kubuntu (needed for #630088).

Updating internal variables from lh to lb scheme, should be the last piece to finish the live-helper to live-build rename.