Added default boost::thread::hardware_concurrency for calculating default amount of threads thanks to reportingsjr
Added default boost::thread::hardware_concurrency for calculating
default amount of threads
thanks to reportingsjr

TomT0m/Boolean-c10t,TomT0m/Boolean-c10t,TomT0m/Boolean-c10t,TomT0m/Boolean-c10t,TomT0m/Boolean-c10t,TomT0m/Boolean-c10t