Bug fixed: when line in HEX is longer than 16 bytes app is crushing

during DFU.

src/no/nordicsemi/android/dfu/HexInputStream.java

@@ -25,7 +25,7 @@ import no.nordicsemi.android.dfu.exception.HexFileValidationException;
  * </p>
  */
 public class HexInputStream extends FilterInputStream {
-	private final int LINE_LENGTH = 16;
+	private final int LINE_LENGTH = 20;
 	private final byte[] localBuf;
 	private int localPos;
 	private int pos;