Also added additional test to test_xor_code to do an exhaustive decode test (all possible 1 and 2 disk failures) and changed teh default liberasurecode test to test (3, 3, 3).
Also added additional test to test_xor_code to do an exhaustive decode test (all possible 1 and 2 disk failures) and changed teh default liberasurecode test to test (3, 3, 3).