Add categories to posts
Switch category dropdown to use title not name
Remove unused post_categories from category model
re-add voting
Add category validation to post model
Destroy posts if category is deleted
Merge pull request #8 from amZotti/lea-user-can-make-posts-in-a-category

This has already been merged but github is not updating the merge status, merging with the green button so I can delete the branch.
fix post model so validations work
start guest can view posts
Allow guest to browse posts