re-launch a job step if the step fails with a reserved port conflict.

to busy reserved ports, move on to new set of ports for the next job step
create, also change formatting of the port hostlist to avoid port expressions
like "1[000-003]", we push entries on the list like this "[1000]" to fix.

modifications to allow people to be able to see what task layout a step had and also correct node counts for jobs/steps

Avoid abort if there is a plugstack configured, but no options get propagated through the environment.

PATCH 9/9 from Mark Grondona
Expand test7.11 to validate new features.

PATCH 8/9 from Mark Grondona

PATCH 7/9 from Mark Grondona

PATCH 6/9 from Mark Grondona

PATCH 5/9 from Mark Grondona
Updated test7.11 to validate new functionality
Fixed bug in logic, uninitialized list.

PATCH 4/9 from Mark Grondona

PATCH 3/9 from Mark Grondona

PATCH 2/9 from Mark Grondona

PATCH 1/9 from Mark Grondona

   SlurmKillOnBadExit to KillOnBadExit

    as any task of a job step exits with a non-zero exit code. Patch based
    on work from Eric Lin, Bull.

Remove REBOOT, ROTATE, MAXPROCS, and BLOCK_START for BlueGene systems

fix for systems that don't have multiple cores

Change some bad href values (.shtml to .html)

Add description of future open mpi mode fo operation.