Testrunner: Make sure num_cpus is actually an int.
Testrunner: Make sure num_cpus is actually an int.

AnnikaH/IncludeOS,AndreasAakesson/IncludeOS,AndreasAakesson/IncludeOS,hioa-cs/IncludeOS,AnnikaH/IncludeOS,AndreasAakesson/IncludeOS,AnnikaH/IncludeOS,AndreasAakesson/IncludeOS,hioa-cs/IncludeOS,mnordsletten/IncludeOS,AndreasAakesson/IncludeOS,hioa-cs/IncludeOS,hioa-cs/IncludeOS,mnordsletten/IncludeOS,AndreasAakesson/IncludeOS,alfred-bratterud/IncludeOS,AnnikaH/IncludeOS,AnnikaH/IncludeOS,alfred-bratterud/IncludeOS,alfred-bratterud/IncludeOS,hioa-cs/IncludeOS,mnordsletten/IncludeOS,mnordsletten/IncludeOS,alfred-bratterud/IncludeOS,mnordsletten/IncludeOS,alfred-bratterud/IncludeOS,mnordsletten/IncludeOS