Fixed test_runner.sh argument order.
Merge pull request #32 from jfilip/31_readme_fixes_25

Fixed test_runner.sh argument order.
Move the order-timestamps responsability

Makes more sense that detect_big_differences.php gets
the arguments from the before branch to after (it also
accepts N args. so we should move the order by to report::make()
which is only called form the web interface.