* Updated Thread::isRunnable() to call pthread_testcancel() on Unix platform.
* Updated Thread::isRunnable() to call pthread_testcancel() on Unix platform.

cybergarage/uhttp4cc,cybergarage/uhttp,cybergarage/uhttp4cc,cybergarage/uhttp4cc,cybergarage/uhttp,cybergarage/uhttp,cybergarage/uhttp,cybergarage/uhttp4cc,cybergarage/uhttp4cc,cybergarage/uhttp