removed export of LD_LIBRARY_PATH to remove possible security issue with including an empty LD_LIBRARY_PATH which ld.so translates to '.'

    Process (Thread POSIX) appearing in the /proc directory. Only account for
    the original process (pid==tgid) to avoid accounting for memory use more
    than once.
Add proctrack/cgroup plugin which uses Linux control groups (aka cgroup)
    to track processes on Linux systems having this feature enabled (kernel
    >= 2.6.24).

  where needed for backwards compatibility

added logic to allow for a SlurmdUser in the slurm.conf so you can allow for munge to have restrictions on signing

  From Jeff Squyres, Cisco

    automatically generate mpirun's machinefile based upon the job's allocation.
    See "etc/mpich1.slurm.patch".

    the code)