Add microposts model. (10.1.1)
Add validation for microposts. (10.1.2)
Set to the has_many relationship bitween users to microposts. (10.1.3)
Add validation to post length. (10.1.4)
Add microposts to the user view. (10.2.1)
Add micropost samples amd css. (10.2.2)
Add the restriction for the micropost actions. (10.3.1)
Finish posting microposts. (10.3.2)
Add status feed to the home page. (10.3.3)