conflict with global #define values.

new flag "test_only" in select_g_job_test() instead.

the time limit check is valid

  patch_02222006).

file read. Still need to add data broadcast and write.

Fix return code handling in the src/api/signal.c code.

which was causing build problems.  (Using srun_job_t in src/common was
not a good idea anyway.)

Remove debugging messages