MINOR Forcefully write javascripts to the end of the HTML if wished

It's defaulted to false. But when set to true, the JS is written to the end of the HTML, even though there are earlier scripts.
This results in faster page-loading if the JS isn't needed earlier-on.

Sorry, no tests, since there aren't any "Requirements tests" yet it seems (or did I look wrong?)

As other Requirements settings, it can be set in page or _config. Manual testing shows this works as expected and are not harmful for the framework's operational flow (unless, ofcourse it should be loaded before inline scripts, but then again, it shouldn't have been set to true).