More files attachment and more questions allowed

- You have apparently 200 free questions once you sign up, but no matter you create 1 or 20 (this is the maximum), you're run out of questions. - Once you upload a file, questions are generated without any confirmation, no matter what. - Only one file per set of questions. - Only English, no matter the source Language Make sure you select the type of questions you want and the amount of them.