[gnome-maps] (13 commits) Non-fast-forward update to branch wip/mlundblad/es6

[Marcus Lundblad <mlundblad src gnome org>]

The branch 'wip/mlundblad/es6' 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:

  bb50529... configure.ac: Bump GJS dependency
  27afcfd... WIP: Use ES6 arrow notation
  e06127d... WIP: Use ES6 classes with GObject extensions

Commits added to the branch:

  15f00d6... Updated Czech translation (*)
  c0cc195... Update Turkish translation (*)
  d64bd0d... Update Esperanto translation (*)
  39a6a49... utils: Remove unused code (*)
  a0eec5a... gschema: Add translator comment about constant strings (*)
  cfc04ec... Update Swedish translation (*)
  29bd77e... Update Serbian translation (*)
  2ef3304... Update German translation (*)
  86dbc2b... printLayout: Avoid extranous paramaters to function (*)
  42468d9... printOperation: Avoid extranous function parameter (*)
  cb04559... configure.ac: Bump GJS dependency
  31cd2f4... WIP: Use ES6 arrow notation
  20b20ff... WIP: Use ES6 classes with GObject extensions

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