... use the one returned by the new server instead.

... by moving setupFavLink to a place only called
if the folder to be referenced exists for sure.

This includes the self-signed certificate anyway, and the previous
behavior led to funny side-effects.

We do not support symlinks anyway

adding WITH_DOC parameter to cmake

Fixes #412

... by mapping chinese script codes to country
 codes as used by Qt and Transifex.