Confirmation Email fix

[ldhandley]

The Confirmation Instructions email that customers are sent is from no-reply@thoughtstem.com. Can we change this to be sent from noreply@thoughtstem.com so that it matches the Access Key email? The Access Key email also shows the sender as "LearnToMod", whereas the Confirmation Instructions email doesn't show a sender name. If we can add a sender name to the Confirmation Instructions email, I think it'll be clearer to users. The Confirmation Instructions email ended up in my Promotions folder in G-mail, unlike the Access Key email, but I think it's because there's no sender name and the email address was different.