- for repeated tests (eg, during bisection) can be used to preserve
the existing directory as tutorialsTest.bak01,
tutorialsTest.bak02, ... (max of 10).
- preserve the commit information as tutorialsTest/commit-info
to help document the current or backup test results.
- additional -serial/-parallel option:
prefer Allrun-serial or Allrun-parallel if available
- optional -output=DIR to preserve output
ENH: report missing tutorials/ directory in RunFunctions