Re-run individual tests to avoid re-running the whole suite.
Re-run individual tests to avoid re-running the whole suite.

To deal with individual flaky tests, we often just re-run the entire test
suite, which feels like an enormous waste of shared computing resources.

This change automatically re-runs individual failed tests as many as two
more times, and considers the test successful if any of those attempts
succeeds.

cc @abernix @hwillson et al.

Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor