Contains ignores
added PLATFORM_NUMA=0|1 flag and enabled OPTERON_OPTIMIZE on the opteron
cleaned up the code / using memalign instead of posix_memalign on all platforms
cleaned-up the code / added TICKET_ON_TW0_CLS two allow the head and the tail
counters to occupy two separate cache lines
made the test more flexible: -t now sets how many threads will be performing try_locks,
while the rest perform normal blocking lock