fixed a couple of inconsistancies in slurm.h

Moved check of time (for no update) into controller.c.

These function encapsulate more hid underlying complexity from the application programmer

cut and paste error

Reconfigure API now working.

Otherwise print first nodes, last nodes, and a few in between.

a few cleanups in job_info and build_info

buffers that are pre-build by slurmctl, using the old inline pack, and for this reason
did not use the assert checked functions

node info conversion

comm layer

fixed a few bugs with node info and reconfigure