20160917:fix(battery_state_service,and bluetooth_connection_service)
2016/04/17:fix(Change the random color (acceleration sensor))
2016/04/14:test(Change the random color (acceleration sensor))
20160401:fix(position)
20160321:add(color)
20160321:add(year,month,day,day of week)
20160320:fix
20160320:release