[mutter] (5 commits) Non-fast-forward update to branch wip/carlosg/emoji-rapture

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/emoji-rapture' 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:

  76f98bc... cogl-pango: Special case alpha of 0 for color glyphs

Commits added to the branch:

  2cfdbbd... clutter: Enable negative offsets in delete surrounding text (*)
  bb5ea05... wayland: Translate delete-surrounding properly to protocols (*)
  86f2885... cogl: Remove obsolete .map file (*)
  8748841... cogl: Export two more functions (*)
  aa136f4... cogl-pango: Special case alpha of 0 for color glyphs

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