JSToHTML: improve script regex.
JSToHTML: do not replace external sources.
CSSToInline: remove the inlining class.

We do not need to use the CSSToInline class. We'll just place the data
in proper HTML <style> blocks.
CSSToHTML: rename CSSToInline.

We're not going to inline the CSS anymore. We'll just properly use
<style> blocks to get allt he CSS in one page.