this adds a script to run make check after the build has finished,
repeating tests 3 times to try and reduce false positives from intermittent
Depends on D6616
Hmm, not really a beauty to do this three times, but perfection is to much of an enemy to go forward. Let's hope we can get rid of it later.
With the two parameter for travis_fold fixed I am ok with this one.
travis_fold does need two parameter, right?
It's unlikely we'll be able to remove iterating. Running tests in a loop like this is pretty common practice from devops people I've talked to--at least if you're running on Travis.