Fixed bugs. users/show, posts/show and posts/index work together now
Add full_name method to users
Add conditional for 'no post found'
Add Edit and Delete links in posts/index
Add create method to post
Add option to render xml and json in posts_controller, method show
Add REST method names to post and user controllers
Add edit method to Post and User controllers
DRY posts_controller.rb, Add image to User