Use the item name for the `prepare` command.
Don't use file-system caching for rendered segments yet.
TODO: need some bake scheduler first!
Setup the server better.
Use properly formatted date components for the blog sources.
Processors can match on other things than just the extension.
Make template directories properly absolute.
Add `help` function, cleanup argument handling.
More robust Markdown configuration handling.
Better handling of Jinja configuration.
Add `import` command, Jekyll importer.