Management fast track

Based on user feedback, we have eliminated the email confirmation step for new sheets. It used to be that after you created a sheet you would have to wait for an email with the manage link before you could edit or publish your sheet. But frankly, that's annoying, and it really doesn't help make things more secure. So we dropped it. Now when you create a sheet you will be taken to the manage page immediately. We still send an email confirmation, mostly so you have a copy of the manage link you can use to get back to the sheet later.