Implement e-mail confirmation #356
Description
It would be a good idea to create some sort of e-mail confirmation, I just changed my e-mail address and it seems like it worked (it shows up there as being the new one I guess) but I have no idea if the site really made the change or not. Plus if you'd make a typo you'd get stuck with a wrong e-mail address. Ideally getting an e-mail letting you know of the change first, and then another one to confirm the e-mail address was a correct input.