Qt: show extension short description in menu

Else fallback to title
VLSub: correct description
lua: make "net" namespace available to extensions

Close #9495
MacOS: fix libvlccore.dylib symlink

Close #9504

Until a better solution
NSIS: rename the "Reset prefs" link

Close #8017
configure.ac: remove unused MACOSX_DEPLOYMENT_TARGET macro (close #9139)
arm_neon: Fix a minor typo in a comment

Signed-off-by: Martin Storsjö <martin@martin.st>
contrib/zvbi: fix compilation with clang

Simplified version of initial patch
vout_ios2: compilation fix
opus: add encoder

This patch adds an encoder to the opus module.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>