v1.5.13

- remove lilo support
- image.in/Makefile: fix show image size
- oem: do not set English language by default
- services: Add (un)mask systemd units (thx @jqt4)
- grub: add variable DISABLE_LANG_MENU
- x11-autostart: enable graphical.target
- oem: fix enabled oem.target
- x11-autostart: do not require use/x11
- Revert "initrd-propagator: add {STAGE2,RESCUE}_BOOTARGS=udev.log_level=err"
- l10n: set KEYMAP in vconsole.conf if exist
- initrd-bootchain: exclude initrd feature kbd
- live-install: remove use/live-install/vnc
- live-install: add use/live-install-pkg
- oem: add systemd.unit=setup.target to kernel cmdline
- alt-education: sync with ALT Education 10.2 (thx @cas)
- slinux: sync with Simply Linux 10.2 (thx @sem)
- alt-server: add latest commits (thx @jqt4)