Starting: 10.1.2 Accessible attributes and the first validation

http://ruby.railstutorial.org/chapters/user-microposts#fig-micropost_model
Starting: 10.1.4 Micropost refinements

http://ruby.railstutorial.org/chapters/user-microposts#code-user_has_many_microposts
Finished Listing 10.14

http://ruby.railstutorial.org/chapters/user-microposts#code-micropost_ordering
Finished 10.16
	http://ruby.railstutorial.org/chapters/user-microposts#code-micropost_dependency
Starting: 10.2 Showing microposts

	http://ruby.railstutorial.org/chapters/user-microposts#sec-showing_microposts
Starting: 10.2.2 Sample microposts

	http://ruby.railstutorial.org/chapters/user-microposts#sec-sample_microposts
Starting: 10.3 Manipulating microposts

	http://ruby.railstutorial.org/chapters/user-microposts#sec-manipulating_microposts
Starting: 10.3.2 Creating microposts

	http://ruby.railstutorial.org/chapters/user-microposts#sec-creating_microposts
Finished: Listing 10.35

	http://ruby.railstutorial.org/chapters/user-microposts#code-updated_error_messages_partial
Starting: 10.3.3 A proto-feed

	http://ruby.railstutorial.org/chapters/user-microposts#sec-a_proto_feed
Starting: 10.3.4 Destroying microposts

	http://ruby.railstutorial.org/chapters/user-microposts#sec-destroying_microposts
rails upgrade to 3.2.11  --  Security issue
feed list custom css missing class on ol
10.4 Conclusion

	http://ruby.railstutorial.org/chapters/user-microposts#sec-10_4