This gets rid of the directory demux and playlist hacks.
Fixes #2050.

TODO: proper tree structure.

Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

Backported from 0.9-bugfix

Patch provided by Marian Durkovic.

By the way, the exception handler claims the exception is not handled!

We don't want a different interface than the one requested (if any)

Thanks for not waiting for this announced, easy-to-backport commit.

 I have modified spu_RenderSubpictures to take a b_paused argument.
 The calls to pf_pre_render/pf_update_regions could have been moved to
spu_SortSubpicture and might have been cleaner BUT the way used keeps
all time consumming tasks inside spu_RenderSubpictures.

Buggy CacheMerge assumes this (among other wrong things)