Add post class
Add PostsController Index function
Add Post Index page
Add PostsController New function
Add Post New page
Add new Post form partial
Add PostsController Create function
Add strong paramaters to PostsController
Add hyperlink to posts on post index page
Add button for post link
Add rank column to posts db
Add adjust_rank callback to Post
Add PostsController Update function
Create Vote class
Create Votes table
Post has_many votes
Add VotesController file
Add VotesController Create function
Fix Post upvote bugs
Remove unnecessary Posts 'Votes' column