Added the slurm_job_cpus_used_on_node_inx() slurm_job_cpus_used_on_node() API for working with the job_resources_t structure.

   slurm.h and deleted job_info.h.

--enable-debug no longer has to be stated at configure time to have the slurmctld or slurmstepd dump core on a seg fault.

    any other processing in spank_init().  This now prevents fatal errors from
    being mistakenly treated as recoverable.

fix so this makes it possible to actual run this test if you have more than 345 processes running, which could easily happen from my experience.

- the select_job_res structure has been renamed job_resources
- all pertinent references to "select_job_res" have been renamed "job_resources"
- the select_job_res_t *select_job member of the slurmctld.h's job_record has
    been renamed job_resources_t *job_resrcs

When querying database for jobs in certain state and a time period is given only jobs in that state during the period will be returned, previously if a time period was given in sacct jobs eligible to run or running would be displayed, which is still the default if no states are requested.