Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)

- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gm

Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)

- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091

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drop <minix/termios.h>, use clean <sys/termios.h>

. also implement some netbsd-style tty ioctls
. also implement SIGINFO
. also import netbsd stty
. rename keymap minix CMIN (for ctrl+minus on n

drop <minix/termios.h>, use clean <sys/termios.h>

. also implement some netbsd-style tty ioctls
. also implement SIGINFO
. also import netbsd stty
. rename keymap minix CMIN (for ctrl+minus on numeric keypad)
to CNMIN; to keep unchanged control character default CMIN in
new <sys/ttydefaults.h>
. convert CS[5678] logic in rs232 driver to explicit setting of LC
bits

Change-Id: I9b7d2963fe9aec00fb6e7535ef565b3191fc1c1d

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Termcap update, replacing elvis by nvi.

Removing elvis, importing nvi, ctags, updating libedit.

Change-Id: I881eb04d2dc64cf112facd992de1114e1a59107f