Replace copy/clear with move/alloc

Fixing problem when clearing core_bitmap,
My fault, sorry

Conflicts:
	src/plugins/select/cons_res/select_cons_res.c
	src/slurmctld/reservation.c

and alloc and such jobacctinfo.

instead of putting 0's into the database we put NO_VALS and have sacct
figure out jobacct_gather wasn't used.

Incorrect error codes returned in some cases, especially if the slurmdbd is down

Previously for linux systems all information was placed on a single line.

was setting task count to ntasks-per-node times min node count.
Now leaves ntasks unset

interface instead of through the normal method.