Log Message:
Update to 0.89b:

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Version 0.89b:
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  - Renamed afl-plot.sh to afl-plot, as requested by Padraig Brady.

  - Improved the compatibility of afl-plot with older versions of gnuplot.

  - Added banner information to fuzzer_stats, populated it to afl-plot.

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Version 0.88b:
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  - Added support for plotting, with design and implementation based on a
    prototype design proposed by by Michael Rash. Huge thanks!

  - Added afl-plot.sh, which allows you to, well, generate a nice plot using
    this data.

  - Refactored the code slightly to make more frequent updates to fuzzer_stats
    and to provide more detail about synchronization.

  - Added a fflush(stdout) call for non-tty operation, as requested by
    Joonas Kuorilehto.

  - Added some detail to fuzzer_stats for parity with plot_file.