add command line option to test-valhalla for testing the behaviour when all threads are forced to stop after a time limit
add command line option to test-valhalla for testing the behaviour when all threads are forced to stop after a time limit

GeeXboX/libvalhalla,GeeXboX/libvalhalla,GeeXboX/libvalhalla,GeeXboX/libvalhalla,GeeXboX/libvalhalla