busybox 1.18 branch refreshed (+1.17.1-10)

[Michael Tokarev <mjt@tls.msk.ru>]

Available at git://git.corpit.ru/busybox-debian.git bb-1.18
as before (note it's a separate branch named bb-1.18).
I incorporated config changes that went into 1.17.1-10.

FWIW.

Thanks!

/mjt