Fixed a lot of comments by removing tabs and correcting format.

core/bitarithm.c

core/include/config.h

core/include/hwtimer.h

core/include/io.h

core/include/irq.h

core/include/lifo.h

core/include/msg.h

core/include/queue.h

core/lifo.c

core/sched.c

cpu/arm_common/arm_cpu.c

cpu/cc430/doc.txt

cpu/lpc2387/gpioint/lpc2387-gpioint.c

cpu/lpc2387/include/cpu.h

cpu/lpc_common/doc.txt

cpu/mc1322x/include/cpu.h

cpu/msp430-common/include/cpu.h

cpu/native/include/cpu.h

cpu/native/include/nativenet.h

drivers/cc110x/cc1100.h