rename iotd to lightd

guowenxue

3 days ago feb96aa5dc5a36e5a3156341b3decfb253da7c4e

rename iotd to lightd

 project/lightd/etc/iotd.conf

 project/lightd/hal/ds18b20.c

 project/lightd/hal/ds18b20.h

 project/lightd/hal/gpio.c

 project/lightd/hal/gpio.h

 project/lightd/hal/hal.c

 project/lightd/hal/hal.h

 project/lightd/hal/makefile

 project/lightd/hal/sht20.c

 project/lightd/hal/sht20.h

 project/lightd/hal/tsl2561.c

 project/lightd/hal/tsl2561.h

 project/lightd/main.c

 project/lightd/makefile

 project/lightd/src/conf.c

 project/lightd/src/conf.h

 project/lightd/src/makefile

 project/lightd/src/mqtt.c

 project/lightd/src/mqtt.h