Fix quoting inside inlined backlinks. Fix #900

Well that's interesting: selectors with Element.querySelector|All
will search for corresponding elements inside the whole document,
and will only return elements that are inside your given root element.
Release 2.37.5.
Merge branch 'master' of git://github.com/MayhemYDG/4chan-x into relativedate

Changelog is inherently unmergable ;_;