a4mod updated, added line breaks to grader.py.
Fixed bug in checking if output files were provided.
Merge branch 'master' of github.com:teammcr192/py-grader

Conflicts:
	grader
Fixed bug in output checking function.
Fixed a bug with printing the file contents to the grader.
Fixed bug with answer grading.
Fixed a bug with subtracting grades for answers.
Fixed a bug where incorrect filenames caused a crash.
Fixed a bug that crashed the program if the file was late.