The VFS layer provides file system abstractions to allow using a unified
interface to access files from mounted file systems.

Enable adding more C++ specifics inside the same ifdef block (e.g. sys/include/vfs.h)

This line gave a -Wunused-value in gcc-4.6 before the stdatomic.h header
for msp430 was modified as a workaround.

cpu: moved all vendor headers to CPUNAME/include/vendor/

core: bugfix: ringbuffer_remove

posix_sockets: Various fixes in posix network implementation

The sin6_family member was an int. This caused the structure to
take 32 bytes which was greater than sockaddr_storage size (28
bytes).
Using the type sa_family_t for sin6_family member fixes this
issue.

Signed-off-by: Francois Berder <francois.berder@imgtec.com>

cpu/lm4f120: remove useless gpio_pp_t type

The return value of these functions was not always correct
in case of errors: they were not returning -1 and setting
errno.

Signed-off-by: Francois Berder <francois.berder@imgtec.com>

test/driver_xbee: fix xbee param UART export in Makefile

boards : renamed opencm9-04 into opencm904

doc/saul: add cross link between SAUL and SAUL registry

boards/nucleo-l053: initial support

cc2538: fix timer_set for channel B

boards: fix typo in author name

boards/opencm9-04: disable bootloader's timer interrupt