change new post creation method
Merge branch 'master' of https://github.com/tiger-swallowtails-2013/hacker_news
more post model tests
add post belongs_to user migration
stub out post controller tests
Merge branch 'master' of https://github.com/tiger-swallowtails-2013/hacker_news
post controller tests
Merge pull request #9 from tiger-swallowtails-2013/posts_controller_tests

Posts controller tests