Fixups for fastboot with sbin support
	modified:   ts/5.1/build
	new file:   ts/5.1/conf/debuginit/build.conf.example
	new file:   ts/5.1/conf/debuginit/thinstation.conf.buildtime
	modified:   ts/5.1/fastboot/etc-ro
	modified:   ts/5.1/fastboot/fastboot-mangle
	modified:   ts/5.1/fastboot/lib-boot
	modified:   ts/5.1/packages/base/.dna
	modified:   ts/5.1/packages/base/etc/thinstation.init
	renamed:    ts/5.1/packages/base/bin/shutdown -> ts/5.1/packages/base/sbin/shutdown
	modified:   ts/unwind_cache/base.turbo
	modified:   ts/wind_cache/base.turbo