Add simple test for uniform sampling with void rejection; Comment changes for voxel case as well.
Added -r and -a options for resampling, and uniform resampling of entire problem.
Updated tests (WIP) for new flags in source.F90.
Code to generate 'runall' script for a set of step 2 problems.
Removed 'save' block from module in source.F90.
'save' only makes sense in a subroutine, which was the case prior to refactoring in July.  Testing indicates that the 'save' block did indeed affect nothing.
Modification to do parameter reading the same way r2s_step2.py does
Typo fix
Updates to add 'resample' and 'uni_resamp_all' options to r2s-act workflow.
r2s_step2setup now creates the script r2s_run_all_step2.sh which runs r2s_step2.py for all subfolders created. #33