coding conventions for most of system libraries

sys/auto_init/auto_init.c

sys/chardev_thread.c

sys/config/config.c

sys/include/board_uart0.h

sys/include/chardev_thread.h

sys/include/ping.h

sys/include/posix_io.h

sys/include/ps.h

sys/include/radio/radio.h

sys/include/radio/types.h

sys/include/shell.h

sys/include/shell_commands.h

sys/include/timex.h

sys/include/transceiver.h

sys/include/vtimer.h

sys/net/mm/mmr.c

sys/net/mm/mmr.h

sys/net/mm/mmstack.c

sys/net/mm/mmstack.h

sys/net/sixlowpan/bordermultiplex.c