did : finished with home page
did : changed background file position
did : writting erb insted of direct html
did: chaged users_path to home_path
posts creation
did : added AuthenticatedSystem in lib folder
did : image up-loader
did : user#index page
first commit in Linux muchine
did : created post popup and some refactoring
refactoring application layout
did : liking function done
did : added 3 columns in users table
did : display rank and like dislikes
did : improved navigation bar