[libgloss] * configure.in: Add rl78. * configure: Regenerate. * rl78: New directory

[newlib]
* configure.host: Add rl78.
* libc/include/machine/ieeefp.h: Add rl78 support.
* libc/include/machine/setjmp.h: Add rl78 support.
* libc/machine/configure.in: Add rl78.
* libc/machine/rl78: New directory.
Initial commit
* libc/machine/rl78/setjmp.S: Convert from CPP macros to GAS macros, to avoid dependence on the line separation character.

* rl78/crt0.S (_interrupt_vector_table): Convert from CPP macros
to GAS macros, to avoid dependence on the line separation
character.
SLIP-radio support for the Nooliberry (RF230 radio)
SLIP-radio support for the Econotag
Restore CC2420 as default in slip-radio
Find and use latest installed GNURL78 toolchain automatically.
Add reset action to terminal target of Makefile. If reset signal is routed to MCU and reset action is not requested, reset signal will be held low.
In GNURL78 v13.01 __far keyword is fixed. Now it is possible to use far pointers to flash area.
Added the PmodRF3 demo for Renesas RL78G14 board.
Added the PmodRF3 demo for Renesas RL78G14 board.
Add method to get the first neighbour which is about to expire
native/net/tapdev: Fix for new `UIP_CONF_IPV6` handling.
Added `*.orig`, `*~`, and `.DS_Store` to `.gitignore`.
Added 3 more functions.
Code style fixes
Use memcpy, memcmp functions for the rime compare and copy functions as they
are already used all over contiki.
Code style fixes
Fixes imposibility of receiving data when a node not using RPL joins a network
which does.

The RPL header is processed, declared invalid and the packet discarded. This
is fixed by this commit.
Limit size of uip/tcpip stack when not using TCP at all.