BLUEGENE - scontrol delete block and update block can now remove blocks on dynamic laid out systems.

rewrote code to better handle block free and error state changes.  Sfree now only calls the controller to do things instead of doing them under the covers.

    the following syntax: "squeue -j <job_id> -s".

  calls for proper pthread syntax

  suspend times accumulated prior to a job requeue/restart

higher priority job

  depending upon PreemptMode configuration