pending: fontconfig: Add new location of cached files for fontconfig.

Newer versions of fontconfig have deprecated the customary places to adopt a
more XDG-compliant structure. This patch includes the new place of the cache.

Signed-off-by: Rogério Brito <rbrito@ime.usp.br>
pending: libdvdcss: Fix ids of the cleaner and of the option.

Bad copy and paste.

Signed-off-by: Rogério Brito <rbrito@ime.usp.br>