Creates of Updates a shapefile from the Marine Debris Tracker Application from the University of Georgia see (http://www.marinedebris.engr.uga.edu/). Create a user account, and download the most recent csv with all of the  data. Use that csv as an input for this program. If the marine debris shapefile has not been created, the script will create a new shapefile from the csv; if the file has been created, it will update the shapefile with any of the entries which have not been added to the shapefile yet.