Update to 1.86b:

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Version 1.86b:
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  - Added support for AFL_SKIP_CRASHES, which is a very hackish solution to
    the problem of resuming sessions with intermittently crashing inputs.

  - Removed the hard-fail terminal size check, replaced with a dynamic
    warning shown in place of the UI. Based on feedback from Christian Holler.

  - Fixed a minor typo in show_stats. Spotted by Dingbao Xie.

(wiz)