busted-flaky

busted-flaky is a busted extension for handling flaky specs by retrying
any block a specified number of times until it succeeds.

It adds a new block that can wrap `describe` and `it` blocks. It also
can be used by simply tagging any block with #flaky.

The name of the block (flaky), tag (#flaky), the number of retries and
the output on the specs can all be configured with -Xhelper options.