Add micropost model, add user/micropost associations, add dependent: destroy to user model, implement validatons, create templates for showing microposts, add form for posting microposts, add ajax call for requesting additional micropost of user, implement acess control for micropost controller
Implement micropost feed on root path in order to have two differen versions of '/' depending on sign status of user, add micrposts#destroy and make sure that current_user can only delete his own microposts
Add micropost views
Merge branch 'user-microposts'