config/routes.rb <added resources for sessions>
config/routes.rb <routes for signin and signup included>
session controller< new, create and destro methods added>
app/view/seesions/new.html.erb added. for sign in
tests for signin described in authentication_pages_spec.rb
form for signin created in the new.html.erb page of sessions
create method in sessions_contrller.rb<added render 'new'>
first attempt to create an error message for failed signin in session_controller.rb create action
sessions_controller modified in create action
SessionHelper included in Application controller
SessionHelper included in Application controller
remember_token added to db
encryption done: methods added in user class user.rb
sessions_helper module<sign_in method described>
methods for signin status and current user added to sessionhelper
changing the layout links for signed in users in _header.html.erb layout
add bootstrap js lib to application.js<needed for dropdown menu>
signing in user upon sign in<user controller> added sign_in @user
sign out test included in authentication_pages_spec.rb
sign_out included in destroy action of session controller