The git checkout and build process can leave the checkout
date in the tarball release, leading to unstable sorting.
I tried to use `git restore-mtime`, but that doesn't work for
ikiwiki, because dgit interferes with it.
* comments: Comments pending moderation are now stored in the srcdir
alongside accepted comments, but with a `._comment_pending` extension.
* This allows easier byhand moderation, as the "_pending" need
only be stripped off and the comment be committed to version control.
* The `comment_pending()` pagespec can be used to match such unmoderated
comments, which makes it easy to add a feed of them, or a counter
indicating how many there are.
* Belatedly added a `comment()` pagespec.
Simon McVittie
Joey Hess
Joey Hess