-Added command line arguments.  Now the script requires a filepath at the commandline.

-Added logfile functionality.  Now the program will make a logfile in the given directory and log all modified files.

-There is a known bug that will break the program whenever it finds an MP3 with no tag.  I'm not sure how to fix this yet, and seems to be caused by the id3 library I'm using.

Signed-off-by: Caleb George <sbmailguy@yahoo.com>