Added Post Model
  *belongs to a user
  *has content, id, user_id
  *created a create method for PostsController
  *Added A Post Route for user(show) and posts (create only)
  *Added A new post variable to user show
Added Suggestions & Corrected Errors
Added Erics Changes
Merge pull request #6 from akacraigstr/ak-create-posts

Added Post Model, Post Controller, User can create posts!