Add features to a semi-completed social media website project

I have uploaded a skeleton of a social media-type website, "twitbook" which was developed using the Ruby on Rails frame work, GIT version 1.9.4.msysgit.2 It has basic registration and sign in and out features, and the ability to post "microposts". I require you to add some features to this, including the ability to "comment" on microposts, (and edit and delete comments) to "like" and "unlike" both microposts and comments, and the ability to be able to "follow" and "unfollow" other users. I would also like you to make some small changes to the HTLM and CSS, to make the site look slightly different to how it is now, but to keep basic functionality. This is a project only and will never be used online. I would also like a list of what you did, and what classes were created/modified. Thank you