working on lwip...
add gettimeofday function
add gettimeofday function
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	src/include/time.h
fix cairo lib
work on time....
Merge branch 'dev' into lwip-1.4.1
work on lwip...
[lwip] modify sys_arch.c, remove sys_now,sys_jiffies method using gettimeofday function