* spintrcritical01/init.c, spintrcritical06/init.c,
spintrcritical08/init.c, spintrcritical13/init.c: Lower microseconds
per tick so tests run quicker and more reliably hit the intended
critical section.
* Makefile.am, configure.ac: Add new tests to exercise cases where a
timer is scheduled from an ISR while it is being scheduled at the
task level.
* spintrcritical13/.cvsignore, spintrcritical13/Makefile.am,
spintrcritical13/init.c, spintrcritical13/spintrcritical13.doc,
spintrcritical13/spintrcritical13.scn, spintrcritical14/.cvsignore,
spintrcritical14/Makefile.am, spintrcritical14/spintrcritical14.doc,
spintrcritical14/spintrcritical14.scn: New files.
Joel Sherrill