lpcmanager

Increased num of modbus regs from 511 to 512 and removed init of modbus baud-rate and parity which is now done from Composer.
rt_task_delete(&UART_task);
rt_task_join(&UART_task);
closeserial(UART_fd);
gpio_close(RS485_GPIO_dev);
rt_mutex_delete(&UART_WriteMutex);
rt_mutex_delete(&UART_ReadMutex);