Revert "htdocs: move inline JS to a separate file."

This reverts commit 3a9740b11098cc14584c9d47757333d3b9cb3073.

Conflicts:
	htdocs/archive/index.php
	htdocs/demo/index.php
	htdocs/make.js
	htdocs/run-tests.js
	htdocs/site/js/cppcheck.js
	htdocs/site/js/pack.js