NF: Create VTK files from old mrGray .class files
Make output file an optional input.
Output new-lines when printing stuff to the command window.
Merge pull request #92 from arokem/vtk_from_class

New function makes VTK files from old school .class files
Merge pull request #93 from arokem/linewraps

Output new-lines when printing stuff to the command window.
fixed how dt6.mat files are loaded. now we use the propper function