Cleaned up the crunch++ build system as -pthread is not needed (C++11 threads) nor is -lstdc++ as we are using g++ as our linker invoker + crunch is not needed in crunch++'s linker options to create a complete working library so has been removed. crunchMake is now quiet when V == 0.
Removed -pthread from another link line, but was overzealous removing -lstdc++ so have added that back to keep the build working completely correctly