Renaming config/binary_debian-installer-includes to config/includes.binary_debian-installer for consistency with the other include directories.

Cleaning http_proxy and ftp_proxy settings in chroot, people using apt proxies set them throught the apt pseudo-proxy options, and people using real proxies use config/environment.{chroot,binary} to set them.

Moving firmware symlink creation to the end of binary_debian-installer in order to ensure to take only the latest packages into account that get into the image, regardless if they come from the archive or are localy included.

Naming resulting binary isohybrid image binary.hybrid.iso from now on for consistency with the different hdd images later on.

Unconditionally including firmware in all images by default. This is safe since only firmware available within the configured archive area is included automatically, see manpage.

Updating static list of live specific packages that get unconditionally added and included in the source images.

While the actual firmware packages are automatically detected,
it is handy to have the firmware-linux meta package included
if non-free is enabled. That way, future upgrades to newer kernels
will keep having all available firmware packages pulled in too.

Generating package indices for the detected sections within binary pool, needed for proper firmware package placement.

Installing packages into their detected sections within binary pool, needed for proper firmware package placement.