directories as world-writable - fixes #1306

These are are quite slow to compute, so it could be used to speed up start up
once reading them from the cache is also implemented.

Hmm, there is a security problem in this commit (cache file is world-readable).

Someone should fix this properly instead.

as it needs some specific processing in the decoder.
Patch from William Hawkins

Patch by Williams Hawkins

Remove the singleton pattern. Still very much work in progress.

at the moment

(draft-ietf-avt-rtp-and-rtcp-mux)

showing up at all due to fontconfig returning empty strings on
font lookup.

You may need to upgrade Windows Media to get this working,
since it uses a newer DLL name.