Remove test posts
Suppress displaying project posts on home page

Unless the post has the 'featured' property set to true, e.g.:

    ---
    title: foo
    date: ...
    alias: ...
    featured: true
    ---

The rationale here is that project logs are mostly for me and don't add
value to the casual reader.
Adjust whitespace
Strip excess empty lines in Jekyll HTML output
Simplify post visibility rules

By default, all posts are shown on the main page and in the main feed.
If a post explicitly sets its featured property to false, it is omitted
from these views.
Format main index html
Normalize whitespace in launch daemon plist