Actually implement up to 5 blogs in template.

The early change to frontpage.py was not sufficient; the template
obviously needs to make use of those five blog posts as well.

Note the cascading effect here. We only put lots on the front page if
they are recent.

Link to Copyleft Compliance more fully.

We had a link to copyleft.org before, which I remove here, and put a
more general link to the copyleft compliance work.

Wording changes and typo fixes for Supporters.

Update information about who can become a Supporter (small companies
can, too), and make sure they're called "Conservancy Supporters"
throughout.

Place Supporters counter on front & sponsors pages

The number of current supporters now appears on the frontpage and the
sponsors page.

Use same logic for blogs as for news

Put the code for blog.1 within the if block of blog.0, as this is the
logic used for news. As a result, the <hr> divider for blogs is now
in the "shaded" element (as it already is with news).

Move the hr into the shaded div

Move the hr into the shaded div, as is already the case with news.

Fix HTML </div> error on frontpage

One too many <div> elements were closed when no blogs were displayed.

Note that the logic between news and blogs is different: news opens
one "shaded" div and puts all news in it. In the case of blogs, one
"shaded" div is created for each blog entry displayed.

sfconservancy.org now has an SSL certificate; make site HTTPS-Everywhere compatible.

Change all links when possible to not mention a site, so HTTPS will be used
automatically for same-site links.

For embedded images, and other links out to the rest of the world, use HTTPS
when the site is known to support it.

Move email subscribe box to the front page only.

It just looked wrong up there on top of the page. I know that's what I
suggested to Paul to do it, but 11 months later, when I finally accepted his
merge request, it just didn't make sense.

Moved some overview text over to frontpage; fixed typo in overview;
s/.../&hellip;/