Last time I checked, V4L2 was not a demux :) (well it can sometimes be used as an access_demux ... but it's still an access)

Some wording improvements

Signed-off-by: Rafaël Carré <funman@videolan.org>

(untested as I have no software capable of sending this)

Qt4 (and a bunch of other GUIs, I suspect) needs to reference the audio
output properly, but they don't. As such, we need to keep the loosy,
slow and broken vlc_object_get() usage.

This reverts commit 7f120f79.

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

Unused video outputs are currently attached to libvlc, so there is no
point in destroying them from the playlist (twice), then from libvlc.
This should also fix #1593 (multiple vout free).

(assuming rt-offset is zero)