code: public com.authy.api.User createUser(String email, String phone, String countryCode) {
  		User user = new User(email, phone, countryCode);
  		
  		String content = this.post(NEW_USER_PATH, user);
  
  		return userFromXml(this.getStatus(), content);
  	}
docs: Create a new user using his e-mail, phone and country code.
  @param email
  @param phone
  @param countryCode
  @return a User instance