Folder URLs are likely DVD or bluray folders, which cannot be resumed
properly. Also fixes memleak, and unify guards. Do not save position
for input items which we do not resume afterwards anyway.

macosx: slightly de-uglify the VLC description in the about dialog by rendering it in the system's default font instead of Times

And only read it if that's a known version.

ilst -> metadata (indexed or not) container atoms
udta -> raw atoms

Only ilst have metadata as data atoms

This is copied&pasted from Wayland build rules.

- Remove black lines below podcast controls
- fix uncentered dropzone when starting native fullscreen, by slightly
  increasing the min height
- fix disappearing or uncentered dropzone when changing between
  normal and minimum view quickly
- consolidate dropzone and podcast sizings in interface builder

This image was set, but it is not overwritten by its os-dependent
counterpart in code. In fact, we only have one image, so just unset
the alternate image in xib.

This especially fixes the -on graphics.
Signed-off-by: David Fuhrmann <dfuhrmann@videolan.org>

Clang does not fail, but only prints a warning by default for unknown
-W options.

VLC supports groups where mp4 defines switch groups.
As an es can't belong to multiple groups, but does in
switch groups, we don't really have a way to provide
the same track exclusion/alternative features without
duplicating es.

Priorities are then set in a way es/tracks from the same
cat/switchgroup are not all selected.

refs #3970

Follow the spec and correctly handle text encoding

And fix reading