Restore the refactoring to scan_for_exiting() that was lost in a merge.
Remove the step of requesting a status for a job to make sure it still exists before sending an obit to pbs_server. This is unnecessary overhead.
changed read_ac_socket to read in pam_pbssimpleauth.c. This
fixes a problem where the torque pam module failes to load
because it cannot link read_ac_socket. TRQ-2096