Fixed incorrect class name - changed to PostTag.
New fixtures for Post and User
Tidied up and added route rule for posts.
Added method for loading the current logged in user.
Removed non existent instance variable.
Tidied up theme views and styles.
Removed heading.
Submit button set to primary style.
Tidied up Post views etc.
Updated delete button to submit a POST request.
Added setting of author_id in create action, removed admin action and made index switch behavior depending on whether a user is logged in or not.
Updated to use base active record class and added 'required' validation rule.
Tidied up a bit.
Removed unused views.
Updated to use base active record class, added 'required' validation rule and added query methods for listing posts.