[mutter] (8 commits) Non-fast-forward update to branch wip/carlosg/abs-input-mapper

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/abs-input-mapper' 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:

  434aa48... clutter: Add API to retrieve the physical size of absolute 
  aa892dd... backends: Add MetaInputMapper
  75cf25f... backends: Delegate on MetaInputMapper for unmapped display 
  9d1e2ac... backends: Add MetaInputMapper method to lookup devices from
  b0de9de... backends: Turn builtin touchscreen on/off together with DPM
  8a78c27... backends: Update to new "output" setting for tablets/touchs

Commits added to the branch:

  eb0865f... Add README.md (*)
  db5abbb... wayland: Remove unused GList *l (*)
  2360cc5... clutter: Add API to retrieve the physical size of absolute 
  f82a400... backends: Add MetaInputMapper
  1ff06e8... backends: Delegate on MetaInputMapper for unmapped display 
  4044ce9... backends: Add MetaInputMapper method to lookup devices from
  9c95eb2... backends: Turn builtin touchscreen on/off together with DPM
  ac99513... backends: Update to new "output" setting for tablets/touchs

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