Eliminate base_standard.html template and internalNavigate blocks

The base_standard.html template was an unnecessary level of template
inheritance.

Also removed unused `min` and `subtract` template tags.

Remove remaining jQuery

This avoids every page on the site parsing 250KB of JavaScript.

supporter-page.js isn't the most elegant code, but at least it's a little more
modular now and no longer user jQuery.

Defer JavaScript loading

This avoids waiting for the JS to download before rendering the page.

Load JS through Django's staticfiles app

This avoids the need for adjustments during development and allows production to
be served under a single /static declaration in Apache.

Display donation bar, noting it's results, for 1 week after end

The fundgoal section is now always included, but an if statement now
wraps the entire (partial) file, which will only generate any content
if it's not more than one week after the fundraiser has ended.

Add an else that indicates these are results if it is past the end of
the fundraiser.