Little bit of Sass

Tidying up some of the yard templates I noticed some of the CSS appears to have been generated from Sass, but that there didn’t appear to have been any way to generate it. A little research showed the relevant code was removed in bcc3dd84d0997932c592a0baec702c8bfb53fd04 – it seems we were a little overzealous in purging Sass from the repo.

I’ve reinstated the code to generate the CSS file when creating the docs. Of course this adds a development (well, doc-generation only) dependency on Sass. The other option would be to delete the Sass file and check in the CSS file directly – there’s only one and it changes very infrequently.

Does anyone have any opinion on this?

The code in the `Rakefile` is pretty much copied directly from the earlier version, if we keep Sass it might be better to use Rake’s `file` and `rule` tasks. Again, any opinion?