Finished comment related things

Feature Status (* means To Be Implemented)
 - Listing posts
    - Viewing posts
        - Editing Post
        - Commenting on Post
        * Display all comments of post
            * Link to view comment
                - Edit comment
                * Link to user of comment
        * Link to user
 - Listing users
    - Viewing User
        - Editing User
        * Display posts of user
            * Link to each post
        * Display all comments of user
            * Link to each comment