let job/step specify gres requirement with suffix of M (mega)

and add support for topology going away on an existing gres

 (the plugin is optional).
Let resource counts be specified with a "K" or "M" suffix.

BLUEGENE - Added option to scontrol & sview to resume blocks in an error state instead of just freeing them.

generate the plugin_id based upon the name (for ease of making the plugin optional)

(e.g. "File=/dev/nvidia[0-3]")

  internal consistency of select/cons_res data structures if the node
  count of a system changes

cpu count array have one element per node