Create Rudimentary Login interface

[skiadas]

Need the following:

• [x] A page allowing new user registration, by providing email, nickname, password. Will need to set up https support for this, as well as suggestions for password security and verification that account doesn't already exist (emails are unique). It should require email verification of the account.
• [x] A login page (could share (most) parts with the registration page), and an accompanying server side check of the credentials. Allow the possibility to "stay logged in for a period of time".
• [ ] The ability to reset someone's password. Would require an email with a link to allow the reset.
• [ ] The ability to delete your account. With extreme care!

[skiadas]

Use passport for managing user authentication.