refactored login process, added remember option for login

app/controllers/sessions_controller.rb

@@ -4,10 +4,9 @@ class SessionsController < ApplicationController
   end
   
   def create
-    if User.authenticate(params[:name], params[:password])
-      @user = User.find_by_name(params[:name])
-      @user.update_column(:last_logged_in_at, Time.now)
-      session[:user_id] = @user.id
+    session_creator = SessionCreator.new(session, cookies, params[:name], params[:password], params[:remember])
+    
+    if session_creator.authenticate
       redirect_to(params[:url] || session[:previous_uri] || posts_path, :notice => "You are now logged in.")
     else
       redirect_to(new_session_path, :notice => "Password was incorrect.")