Added new method:
public synchronized void blockWrite(byte[] data, byte block_address, byte auth_mode, byte[] key) throws DlReaderException, InterruptedException
Write data (16 bytes) in to the blocks designated by the block_address parameter.
On the Mifare Classic compatible cards You have to skip direct write in to sector trailers. Otherwise You get an exception with code = 10 (FORBIDEN_DIRECT_WRITE_IN_SECTOR_TRAILER = 0x0A).