failing feature and controller tests for new post
Made the tests for posts#new pass

  *added a link to new post form
  *implemented controller action
  *created a new post form
only a logged in user can create a new post
1 failing feature test for posts#create
Feature and controller specs for posts#create passing

  *made posts attr_accessible (with gem)
  *wrote create action
controller test for creating post with invalid attributes passing
Merge pull request #5 from LightningLord/create_new_post

Create new post