network login: reimplement server bookmarks using the Keychain, drop existing PLEX account management in settings in favor of this setup

Pierre SAGASPE authored Jun 14, 2015 and Felix Paul Kühne committed Jun 14, 2015

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

Pierre SAGASPE authored Jun 14, 2015 and Felix Paul Kühne committed Jun 14, 2015

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

local network: do not re-init DSM discovery if it already runs and dispatch the init from the main thread

(cherry picked from commit ecf964aa)

(cherry picked from commit a164e4c4)

(cherry picked from commit aa299226)

(cherry picked from commit 24415f57)

(cherry picked from commit cfb6ed8c)

library: fix corner case which lead the empty folder strings appear for an empty library (close #14851)

(cherry picked from commit 89f1f3a1)

(cherry picked from commit 31854a41)

(cherry picked from commit 131898e3)

playback: fix vout behavior when app moves back and forth between active, background and active states (closes #14795)

(cherry picked from commit 2cfb7655)