[mutter] (27 commits) Non-fast-forward update to branch wip/carlosg/xwayland-on-demand

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/xwayland-on-demand' 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:

  3139443... core: Add MetaSelection and MetaSelectionSource
  5f00cb6... x11: Add X11 MetaSelectionSource implementation
  39bf43d... wayland: Add wayland MetaSelectionSource implementation
  8e2d87a... core: Set up MetaSelection on MetaDisplay
  313b7b1... x11: Add X11 selection management
  155f2da... core: Add memory-based selection source
  50a86c7... core: Add clipboard manager
  812a59d... wayland: Integrate with MetaSelection
  7a3b377... wayland: Reduce MetaXWaylandSelection to just DnD
  a1300b5... Make MetaSelection, MetaSelectionSource and MetaMemorySelec
  2c19318... x11: Add method to launch applications, using SnLauncher
  727884f... x11: Make error trap API NULL safe
  22c48a5... x11: Move focus sentinel to MetaX11Display
  76fa352... core: Do not synchronize stack with Xserver if there is no 
  4593d86... core: Avoid grab transfer shenanigans with non-X11 backend
  c9a6dff... core: Separate checks for pointer barriers availability
  827d37f... x11: Move X11 calls to map/unmap a MetaWindow to MetaWindow
  c45a7b2... core: Relax requirement that MetaWindow shall have icon/min
  cbd8883... x11: Separate X11 focus handling into MetaX11Display method
  e8551a5... x11: Split X11 focus change requests to a separate function
  7ff6085... core: Untangle input focus management
  7623e8b... core: Add explicit init/shutdown_x11() MetaDisplay calls
  ee61e99... x11: Unmanage X11 windows on MetaX11Display finalization
  9462291... x11: Initialize GdkDisplay together with MetaX11Display
  62bd923... wayland: Split Xwayland initialization in 2 steps
  fee2b48... x11: protect against null MetaX11Display when looking up X1
  7b53520... wayland: Launch Xwayland on demand

Commits added to the branch:

  ed42d98... core: Add MetaSelection and MetaSelectionSource
  c8823aa... x11: Add X11 MetaSelectionSource implementation
  5ca0572... wayland: Add wayland MetaSelectionSource implementation
  dd482db... core: Set up MetaSelection on MetaDisplay
  aa2afbb... x11: Add X11 selection management
  eaef065... core: Add memory-based selection source
  9a74634... core: Add clipboard manager
  a0fc4d3... wayland: Integrate with MetaSelection
  14b7105... wayland: Reduce MetaXWaylandSelection to just DnD
  89ccff2... Make MetaSelection, MetaSelectionSource and MetaMemorySelec
  b78e5ea... x11: Add method to launch applications, using SnLauncher
  6588e69... x11: Make error trap API NULL safe
  ce7dad7... x11: Move focus sentinel to MetaX11Display
  0fb98af... core: Do not synchronize stack with Xserver if there is no 
  bb5a8ee... core: Avoid grab transfer shenanigans with non-X11 backend
  15f0a42... core: Separate checks for pointer barriers availability
  de22bcc... x11: Move X11 calls to map/unmap a MetaWindow to MetaWindow
  6b70e85... core: Relax requirement that MetaWindow shall have icon/min
  9872148... x11: Separate X11 focus handling into MetaX11Display method
  d635be2... x11: Split X11 focus change requests to a separate function
  9edffda... core: Untangle input focus management
  881e828... core: Add explicit init/shutdown_x11() MetaDisplay calls
  71fd0f5... x11: Unmanage X11 windows on MetaX11Display finalization
  10ffe37... x11: Initialize GdkDisplay together with MetaX11Display
  fa85964... wayland: Split Xwayland initialization in 2 steps
  8e6c6be... x11: protect against null MetaX11Display when looking up X1
  3c2c3e1... wayland: Launch Xwayland on demand