* itrontask04/init.c: Run all tests successfully with maxixum number of
priorities as 16 instead of 256. This was done by temporarily
modifying the score priority.h maximum. This allowed testing of all
API code to ensure that it worked properly with a reduced number of
priorities. Most modifications were to switch from hard-coded maximum
to using the API provided methods to determine maximum number of
priority levels.
* itronhello/init.c, itronmbf01/init.c, itronmbox01/init.c,
itronsem01/init.c, itrontask01/init.c, itrontask02/init.c,
itrontask03/init.c, itrontask04/init.c, itrontime01/init.c: Change
TEST_INIT to CONFIGURE_INIT. Make tmacros.h available to all POSIX
tests. Add a clock_settime case for < 1988.