DMTCP-2.4.0-rc1 released!

Several important enancements were added to this 2.4 release candidate:

• Newer versions of MATLAB (matlab-2013 and later) were using additional
  Linux features. All recent versions of matlab are again supported.
• Intensive testing done for integration of MPI/SLURM
  for the following MPI dialects: Intel MPI/MVAPICH-2/MPICH-2/Open MPI
  See plugin/batch-queue/job_examples/ for SLURM/DMTCP submission scripts.
• Added support for newest Linux kernels: split of [vdso] into [vdso] and [vvar]
  (to be included in rc2 release)
• Enhancements added for newer 32-bit ARM (armv7) CPUs
• Experimental support is now provided for 64-bit ARM (armv8)
• Bug fixes