fix clock before xo-custom is run

(without this, a laptop with clock battery failed will cause xo-custom
not to be run.)
initrd.x86: xo-custom: fix umount of bootpart
runos/actos: remove, not needed for install
fs0.zip: removed, not needed for install
tiny core linux: remove xo-1.5, xo-1.75, and xo-4 support
rename bootfw, remove old things not needed
tiny core linux: xo-custom: fix umount, fix version
bootfw.zip: remove a duplicate file
fixed merge conflict -- learned to cherry pick in right order