-A 'created_at' timestamp is now saved as an attribute of a post
-'created_at' date now shows for all posts on site.

- refactor:
	- the logic to display a post is now in shared/post.tpl
	- anywhere a post is displayed on the site, this template is simply included.
Merge branch 'master-local'

Conflicts:
	domain.py
	views/recent.tpl
	views/timeline.tpl
	views/user.tpl