Create Comment table
Create Comment class
Add comment association to post
Add post show file for comments
Add new comment page
Display comments for posts
Format comment list
Style header
Style header text
Add jumbotron class styling
Add hover css to jumbotron header
Add jumbotron gradient
Add earth-tone theme
Fix new comments path error
Add link helper for post links
Add link helper for post votes
Add error messages to new comments
Add error messages to new posts
Create users table