Not long ago I asked a question about whether or not it made sense for a VCS backed static site to have a lite web admin interface. It seems as though someone has already worked on this — Spinto is a WYSIWYG web interface for Jekyll backed websites.
I haven't checked out Spinto yet but I plan to. Curious to see how it looks and feels.
More and more I think that something like this should be available to augment the individual file based workflow of most file based static site generators I've looked into.