Controller users and user_sessions added

app/controllers/user_sessions_controller.rb

@@ -0,0 +1,22 @@
+class UserSessionsController < ApplicationController
+
+  def new
+    @user_session = UserSession.new
+  end
+
+  def create
+    @user_session = UserSession.new(params[:user_session])
+    if @user_session.save
+      flash[:notice] = "Login successful!"
+      redirect_back_or_default account_url(@current_user)
+    else
+      render :action => :new
+    end
+  end
+
+  def destroy
+    current_user_session.destroy
+    flash[:notice] = "Logout successful!"
+    redirect_back_or_default new_user_session_url
+  end
+end