Removed preview for (sub)sections
Fixed accents

Of course, this might just break another type of accents.
Parsing the accents in the breadcrumb
Parsing accents in the location overview
Parsing accents remains a challenge
Fixed layout of subsections, and fixed citations

Now multiple citations (as in \cite{a,b}) are okay
Fixed layout bug with preview link in search

It seems to be fixed, but there could be special cases