Fixed a bug with checking file grades.
Output files can now be specified by grader if not found.
Fixed a bug where outputs were being graded even when none existed.
Bad output file names now get points taken off.
Fixed a bug with cleaning up test input files.
(using quotes around path so rm understands it)
Typing 'm' as a grade flags for manual regrading in the comments.
Added option to ignore spacing in output comparison.
This makes grading more forgiving.