Added the now required validator to upload.rb
Added the now required validator to upload.rb

5minpause/multiple-file-upload,odradeck/upload_test,desireB/multiple-file-upload,5minpause/multiple-file-upload,yangman-c/upload,odradeck/upload_test,Balita1124/multiple-file-upload,odradeck/upload_test,desireB/multiple-file-upload,desireB/multiple-file-upload,yangman-c/upload,yangman-c/upload,Balita1124/multiple-file-upload,Balita1124/multiple-file-upload