Fix issue when EnforcePartLimits=yes in slurm.conf all jobs where no nodecnt was specified the job would be seen to have maxnodes=0 which would not allow jobs to run.

user_functions.c that broke test21.20

   or account.

fix bug in job step gres allocation logic

  for logging purposes. no real change in logic

  state, which causes serious problems now that they are different.
Add a node_in_use bitmap to step's gres state.
Improve gres step de/allocation logic

if the cluster you are looking at isn't responding and you look at another cluster the grid is now set up correctly