Use shortest shorthand for font possible.
Add style for different types of comments.
Whatever possible, convert to sprites.

This leaves a single image used as a bottom-right background for
contact information.  No sense to use data: URL for it any longer
so just use a plain fail for that.
Fix OL not being numbered.

list-style: inside overrides also the type so it disabled numbering
for OL and make all lists (also nested) use the same type.  Removing
it also drops the inside which I dunno why I have put in the first
place.
Fixed some hashes in various links.
Fix reCaptcha language.  For some reason it was French.
Drop unused style.
Prevent creation of “load more” link in “Jump to”
Disable AJAX code in Opera.

Fetching documents via XMLHttpRequest stopped working in Opera
as I switched to HTML5, so let's just disable the whole thing
in that browser.  This prevents a rather defunct “load content”
link from being created.
Tiny optimisation.