svn merge -r 21695:22013 https://eris.llnl.gov/svn/slurm/branches/v2.3-frontend

 -- Added support for more than one front-end node to run slurmd on
    architectures where the slurmd does not execute on the compute nodes
    (e.g. BlueGene). New configuration paramters FrontendNode and FrontendAddr
    added. See "man slurm.conf" for more information.