Added url, view and template to display a blog post.
Added a posted at information in blog display.
Add very basic summary property which truncates the post to 300 characters.
The created and updated fields should not be editable but automatically set by the model.
Migration for autoadding of created and updated at.
Give default representation of post as it's title.
Add timezone needed for auto time.
Add mrkdown template filter and module dependency.
Refactor template tags folder so found when django searches.
Display the markdown version of a post