install2-sh-functions: add new function cmdline_get_arg
install2-sh-functions: define stagename from /proc/cmdline

install2: do'nt use find (segfault in automated tests)

10-disk.sh: add to filter partition from which iso was mounted with
install2-sh-functions: fix $image_url for booting from iso files

99-cdrom.sh: do nothing if /dev/loop0 is not linked with
install2-init.c: missing of /altinst is not error
install2: logging of initinstall and preinstall, error output only
install2-action-functions: redirect stdout to stderr when run script
install2: save logs and screenshots at the end of installation
27-metadata-install-scripts.sh: remove output redirection to
00-remove-installer-pkgs.sh: enable verbose for rpmi

99-cdrom.sh: fixate name altinst for zero image /mnt/altinst

doc/common.html: fix typo

99-cdrom.sh: use variable "$stagename" instead of fixed name "altinst"
install2, 99-cdrom.sh: determine cdrom on the actual type of image
Add initinstall.d/27-metadata-install-scripts.sh for copy external scripts

NMU: replace egrep with grep -E, fgrep with grep -F

exclude devices on which device mounted in /image depends

preinstall.d: Rename 50-initrd.sh -> 50-instkernel.sh.
50-initrd.sh: Set kernel from installer as default kernel.
postinstall.d: Drop 98-remove-drm.sh.

30-setup-network.sh: handle 'localhost' from hostinfo fixed

host-N auto hostnames resurrected

30-setup-network.sh, 40-autohostname.sh: configure /etc/hostname
30-setup-network.sh: exclude HOSTNAME=(none)

initinstall.d: Create /dev/{core,fd,stdin,stdout,stderr} symlinks if needed
cp-installer-screenshots.sh: adapt for alterator-browser-qt5 >= 3.2.10-alt1

71-copy-cmdline-parameters.sh: copy usbcore.autosuspend=-1