[mutter] (23 commits) Non-fast-forward update to branch wip/carlosg/clipboard-manager

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/clipboard-manager' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a9d1a74... x11: Add X11 selection input/output streams
  4a194f6... core: Add MetaSelection and MetaSelectionSource
  63e7e5b... x11: Add X11 MetaSelectionSource implementation
  3881d32... wayland: Add wayland MetaSelectionSource implementation
  4505e7c... core: Set up MetaSelection on MetaDisplay
  be58110... x11: Add X11 selection management
  687eff0... core: Add memory-based selection source
  f0aaa87... core: Add clipboard manager
  c223df5... wayland: Integrate with MetaSelection
  e73a7ee... wayland: Reduce MetaXWaylandSelection to just DnD
  289345a... Make MetaSelection, MetaSelectionSource and MetaMemorySelec

Commits added to the branch:

  576cd08... core: Rename MetaStartupNotificationSequence to MetaStartup (*)
  26fbd56... x11: Refactor the X11 startup notification bits into src/x1 (*)
  91ce24d... core: Add extra properties to MetaStartupSequence (*)
  8a10196... x11: Set all MetaStartupSequence properties for libsn seque (*)
  4a69a0d... core: Shuffle startup notification object creation (*)
  4d92979... core: Make MetaStartupSequence/Notification public (*)
  ec6a536... core: Use MetaStartupSequence internally (*)
  7635d06... core: Drop MetaDisplay startup sequence API (*)
  92349a4... wayland: Complete the startup sequence as given from gtk-sh (*)
  6b7bd91... x11: Complete X11 startup sequence on SN_MONITOR_EVENT_COMP (*)
  e11ee44... core: Refactor/simplify display startup sequence handling (*)
  ca7c5c1... meta/plugin: Use G_DECLARE_DERIVABLE_TYPE (*)
  f643385... x11: Add X11 selection input/output streams
  4d6fd1e... core: Add MetaSelection and MetaSelectionSource
  9f54ca5... x11: Add X11 MetaSelectionSource implementation
  c6b6eaa... wayland: Add wayland MetaSelectionSource implementation
  538e50c... core: Set up MetaSelection on MetaDisplay
  1405394... x11: Add X11 selection management
  4a1e8ac... core: Add memory-based selection source
  4517ec9... core: Add clipboard manager
  40bcc56... wayland: Integrate with MetaSelection
  c051b93... wayland: Reduce MetaXWaylandSelection to just DnD
  a7a583b... Make MetaSelection, MetaSelectionSource and MetaMemorySelec

(*) This commit already existed in another branch; no separate mail sent