Added recover account modal. Set up api call for recovery.
* Added resource for recovering email User.recoverEmail(email/username)
* Added api route for recover resource.
  * /api/users/recover/{email or username}
  * Given a username or email, it will return that account's email,
    which can be used to email the user to reset their password
* TODO:
  * Implement heckler email for account recovery.
  * Implement means to reset password using token