Now do a chdir (in a temp directory) before running benchmarks, and writes stdout/stderr into files.
Fixed opam file.
Add check command.
Fix permissions for tmp dirs and files.
Write the benchmark out (--export) as soon as possible.
macrorun now print indication on what is running on stdout.
Run benchmarks in a randomly named tmp directory.
Always measure time, adaptatively compute how many times to run a benchmark.
Duration is now an ordinary measure, add a --limit arg to macrorun.
basic statistics functions