
For the 94/08/28 release version 1_50_1
	BSDi support thanks to Mike Durian

	redo sleep() and added usleep() and nanosleep()
	test_readdir
	add pthread_cond_timedwait()
	add p_bench_getpid
	add p_bench_pthread_create
	add wait(), wait3(), waitpid()
	add wait4() for systems that support it.
	add pthread_getschedparam(), pthread_setschedparam() (only policy works)
	add timers.h with struct timespec
	add errno.h with new definition of errno
	add stat(), link(), unlink(), chdir(), chmod(), chown(), rename()
	add creat(), fchmod(), fchown(), sendmsg(), recvmsg(), shutdown()

	Bug fixes:
		fix ftell bug
		fflush now calls __swalk_sflush()
		vsprintf and sprintf use _file = -1
		flockfile and friends ignore fds < 0
		fd_kern_exec() (Added lots of comments too)
		remove ; after putc() macro definition
		bugs with asynchronous I/O
		make now run configure if the system is not already configured
