Added the option of passing a user-specified split ratio to test_hv_mesh.
Correction to the refacet_surface function. Indices of some dam coordinates were not set correctly.
Created a function for generating the cube via iGeom and the SolidSurfaceMesher
Added a wrapper to save mesh in hv_mesh_gen and added that call to the hv_cube program.
Initial switch to mpi.
Updates/corrections to the MPI calls.
Cleanup of the sweep program. Also removed the gnuplot_script function. The plot scripts should just be kept as separate files.