Renamed menu.html to menu.php. Added author_named to showtopic.php. Added member login menu item to the footer. Temporarily fixed undefined error in the footer by commenting the code. Added get_user_by_id method in tlc_model.
Added the modified database script. Re added login form, signup form. Fixed signup form. Dept_id is not redundant in the members table and has to be removed. Fixed couple of errors caused by  variable. Removed the edit profile page, because it is not redundant.