Comment 10 for bug 634193

We should add a check for this to the library methods that all of our file uploads go through. I believe most of the file upload code passes through some of the functions in mahara/lib/uploadmanager.php, and lib/form/elements/filebrowser.php . All the file uploads in Mahara should pass through some common library methods, because they also need to run the upload through ClamAV if it's turned on.