matlab backward compatibility & slurm support

[fMeow]

Matlab backward compatibility

Fix the compatibility issue with old age matlab (tested with MATLAB 2012b on Linux, Centos 8):

• old matlab do not accept sparse matrix creation with dimension set to an empty matrix

  sparse([], [], [], 1, []) % this is NOT acceptable
  sparse([], [], [], 1, 0) % this is acceptable

• only single quote is accetable when defining a string
• matlab does not support subscription on result from a function: regexp(script,'(^.*)/logs','tokens'){1}{1}

Slurm support

Slurm offers a set of PBS command (qsub, qdel and etc), but it mandatorily require shebang.

And the solution is simple that to add #!/bin/sh to worker script ($LOG_DIR/tmp/psomX.sh).