====================
- New options (unused for now, to pass through to git-pull project
templates)
- ``project_url`` (string) absolute URL for meta tags (e.g. favicons, icons)
- ``show_meta_manifest_tag`` (boolean, default False)
- ``show_meta_og_tags`` (boolean, default False)
- ``show_meta_app_icon_tags`` (boolean, default False)