Log Message:
Update to 1.06b:

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Version 1.06b:
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  - Switched to slightly more accurate (if still not very helpful) reporting
    of short read and short write errors. These theoretically shouldn't happen
    unless you kill the forkserver or run out of disk space. Suggested by
    Jakub Wilk.

  - Revamped some of the allocator and debug code, adding comments and
    cleaning up other mess.

  - Tweaked the odds of fuzzing non-favored test cases to make sure that
    baseline coverage of all inputs is reached sooner.