fix bug
Merge branch 'master' of github.com:dzheng533/homecontrolcenter
 Changes to be committed:

	modified:   Makefile
	modified:   fork.c
	modified:   log.c
	modified:   log.h
	modified:   main.c
 Untracked files:
	../drivers/
	../nrf905/nrf905.h
	../nrf905/nrf905_108.c