Major update to contribs/README

Added descriptions of several new contributed files/directories

contribs/README

@@ -14,10 +14,44 @@ of the SLURM contribs distribution follows:
      Build with "make -f /dev/null env_cache_builder" and execute as user root
      on the node where the moab daemon runs.
 
+  lua                [ LUA scripts ]
+     Example LUA scripts that can serve as SLURM plugins.
+     job_submit.lua - job_submit plugin that can set a job's default partition
+                      using a very simple algorithm
+     proctrack.lua  - proctrack (process tracking) plugin that implements a
+                      very simple job step container using CPUSETs
+
+  make.slurm.patch   [ Patch to "make" command for parallel build ]
+     This patch will use SLURM to launch tasks across a job's current resource
+     allocation. Depending upon the size of modules to be compiled, this may
+     or may not improve performance. If most modules are thousands of lines
+     long, the use of additional resources should more than compensate for the
+     overhead of SLURM's task launch. Use with make's "-j" option within an
+     existing SLURM allocation. Outside of a SLURM allocation, make's behavior
+     will be unchanged. Designed for GNU make-3.81.
+
+  mpich1.slurm.patch [ Patch to mpich1/p4 library for SLURM job task launch ]
+     For SLURM based job initiations (from srun command), get the parameters 
+     from environment variables as needed. This allows for a truly parallel 
+     job launch using the existing "execer" mode of operation with slight 
+     modification.  
+
+  pam                [ PAM (Pluggable Authentication Module) for SLURM ]
+     This PAM module will restrict who can login to a node to users who have
+     been allocated resources on the node and user root.
+
   perlapi/           [ Perl API to SLURM source ]
      API to SLURM using perl.  Making available all SLURM command that exist
      in the SLURM proper API.
 
+  ptrace.patch       [ Linux Kernel patch required to for TotalView use ]
+     0. This has been fixed on most recent Linux kernels. Older versions of
+     Linux may need this patch support TotalView.
+     1. gdb and other tools cannot attach to a stopped process. The wait that 
+     follows the PTRACE_ATTACH will block indefinitely.
+     2. It is not possible to use PTRACE_DETACH to leave a process stopped, 
+     because ptrace ignores SIGSTOPs sent by the tracing process.
+
   sjobexit/          [ Perl programs ]
      Tools for managing job exit code records
 
@@ -36,6 +70,13 @@ of the SLURM contribs distribution follows:
      power of two size, then collapse the node list maintaining the numeric
      order based upon the Hilbert number.
 
+  slurmdb-direct     [ Perl program ]
+     Program that permits writing directly to SlurmDBD (SLURM DataBase Daemon).
+
+  spank_core.c       [ SPANK plugin, C program ]
+     A SLURM SPANK plugin that can be used to permit users to generated
+     light-weight core files rather than full core files.
+
   time_login.c       [ C program ]
      This program will report how long a pseudo-login will take for specific
      users or all users on the system. Users identified by this program 
@@ -45,27 +86,3 @@ of the SLURM contribs distribution follows:
   torque/            [ Wrapper Scripts for Torque migration to SLURM ]
      Helpful scripts to make transition to SLURM easier from PBS or Torque.  
      These scripts are easily updatable if there is functionality missing.
-
-  make.slurm.patch   [ Patch to "make" command for parallel build ]
-     This patch will use SLURM to launch tasks across a job's current resource
-     allocation. Depending upon the size of modules to be compiled, this may
-     or may not improve performance. If most modules are thousands of lines
-     long, the use of additional resources should more than compensate for the
-     overhead of SLURM's task launch. Use with make's "-j" option within an
-     existing SLURM allocation. Outside of a SLURM allocation, make's behavior
-     will be unchanged. Designed for GNU make-3.81.
-
-  mpich1.slurm.patch [ Patch to mpich1/p4 library for SLURM job task launch ]
-     For SLURM based job initiations (from srun command), get the parameters 
-     from environment variables as needed. This allows for a truly parallel 
-     job launch using the existing "execer" mode of operation with slight 
-     modification.  
- 
- ptrace.patch       [ Linux Kernel patch required to for TotalView use ]
-     0. This has been fixed on most recent Linux kernels. Older versions of
-     Linux may need this patch support TotalView.
-     1. gdb and other tools cannot attach to a stopped process. The wait that 
-     follows the PTRACE_ATTACH will block indefinitely.
-     2. It is not possible to use PTRACE_DETACH to leave a process stopped, 
-     because ptrace ignores SIGSTOPs sent by the tracing process.
-