Added twig templates to chef prepare post and prepare page.

You can override the default templates now by creating a prepare/page.html
or prepare/post.html. You can also use any extension defined in auto_formatters,
so prepare/post.md will allow you to create .md posts by default, pre-populated
with customized contents.
Removed an exteraneous test line.
Spaces to Tabs to be consistent w/ project.
Merge pull request #148 from pauldl/master

Templates for chef prepare post and page