def password_change
    unless current_user
      bounce_user
      return
    end

    respond_to do |format|
      format.html do
        @credential = current_user.credentials.
                                   where(type:  'Credentials::Password').first
        unless @credential
          @credential = Credentials::Password.new
          @credential.user = current_user
        end
        # Renders session/password_change.html.erb
      end
    end
  end
def password_change
    unless current_user
      bounce_user
      return
    end

    respond_to do |format|
      format.html do
        @credential = current_user.credentials.
                                   where(type:  'Credentials::Password').first
        unless @credential
          @credential = Credentials::Password.new
          @credential.user = current_user
        end
        # Renders session/password_change.html.erb
      end
    end
  end
GET /session/change_password