o cleanup some slurm makefiles

Fix assorted typos.

   option from environment and documentation of new env var.

rather than (potentially long) list supplied with job.

They are not required by the switch plugin.

even while completing.

rather than matching completing states in nodes and jobs (which fails for
shared nodes).

than old local functions.

completing nodes rather than trying to match node and job state. Matching
node and job state will provide inconsistent results for shared nodes.

   are still in completing state.
 o Document above change in manpage along with other formatting cleanup.

numbers per new change to configure.ac.

assigning it directly to a uint32_t.

   /etc/services.
 o Fix configure.ac to save default slurmctld and slurmd port numbers
   as numbers instead of strings.
 o Fix logic for determination of slurmd and slurmctld port numbers.