Downgrade nodemailer@0.7.1

[carlosmbolanos]

Hello all,

I've been working a little with this awesome plugin and I found an issue with nodemailer, when I try to register a new user with sendConfirmEmail: true I receive:

{ cause: [Error: Unsupported configuration, downgrade Nodemailer to v0.7.1 to use it],
  isOperational: true }

I managed to solve it by doing so... But I still have the feeling that I'm missing something since by default Superlogin installs Nodemailer@1.4.0. Could you guys give me some clues about it?

Thanks a lot!

[cgestes]

see #31 for a fix

[carlosmbolanos]

Thanks @cgestes .

Should have checked PR before ask