Delete on complete doesn't work in transfer.py

[fitnycdigitalinitiatives]

transfer.py has an option to delete the transfer source files, but doesn't seem to work. The issue appears to be that it is trying to use shutil.rmtree and the path from the transfer.db, but that path is only relative to the transfer source location so it's unable to actually locate. I think the transfer.db might need to include an absolute path for this to work.

[mutanthumb]

Just ran this today and it's still a problem, my transfer source files still exist.