calls for improved performance

Fixed issue when using a storage_accounting plugin directly without the slurmDBD updates weren't always sent correctly to the slurmctld, appears to OS dependent, reported by Fredrik Tegenfeldt.

    clusters over 1000 nodes. Users can enable this by selecting the "Name"
    tab. This change dramatically improves scalability of sview.

a cancel RPC to the slurmd

    it were removed from the job's allocation. Now only the tasks on those
    nodes are terminated.

Fix for checking QOS to override partition limits, previously if not using QOS some limits would be overlooked.

this doubles performance on node info refresh (no faster on initial startup).

CPUS = SOCKETS * CORES
but THREADS != 1
in that case, reset select/cons_res internal node table to thread count = 1

    running or suspended states). Patch from Martin Perry, BULL.

    SelectTypeParameters=CR_ONE_TASK_PER_CORE.

_hash_index() in src/common/node_conf.c. Add logic to insure non-negative index
in both functions. 

    The logic has been added to select/linear and select/cons_res, but will
    not be enabled until the other select plugins are modified.

Infrastructure in place plus logic in select/linear.

    indicate job termination was due to preemption.

    "*** JOB 65547 CANCELLED AT 2011-01-21T12:59:33 DUE TO PREEMPTION ***".