changes for MPI testing
two new sample files for testing different parallelizations, also, reintroduce writing of checkpoints to deal more gracefully with aborts
use critical kappa for hmc5
add 8^4 sample files
increase mass for hmc5
improved output of continue jobs
improved parallelization types
renamed mpi test sample files
combined runtime measurements for new mpi tests
create jobscript directory only in create_script
added ranlux level and reproducerandomnumbers as configuration options in genjobscripts and job templates
added more tests for MPI
removed double definition of parallelization directions for 4D_MPI*_16
add job script generator for multi-inversion job scripts