PR 1466/tests
* Makefile.am, configure.ac, psxclock/init.c, psxclock/psxclock.doc,
psxclock/psxclock.scn, psxkey03/init.c, psxsignal02/init.c,
psxsignal03/init.c, psxstack01/init.c: Remove usleep() from tests.
Add test specifically to test it since it is deprecated as of
POSIX.1-2008.
* psxusleep/.cvsignore, psxusleep/Makefile.am, psxusleep/init.c,
psxusleep/psxusleep.doc, psxusleep/psxusleep.scn: New files.
* Makefile.am, configure.ac, psx01/init.c, psx01/psx01.scn: Add new
test to exercise clock and delay services enabled when POSIX threads
are disabled. This is split from psx01. POSIX test suite now enabled
when POSIX threads are disabled so only enable tests which are
appropriate.
* psxclock/.cvsignore, psxclock/Makefile.am, psxclock/init.c,
psxclock/psxclock.doc, psxclock/psxclock.scn: New files.
