[gnome-shell] (6 commits) Non-fast-forward update to branch issue154

[Marco Trevisan <marcotrevi src gnome org>]

The branch 'issue154' 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:

  2c221f4... st-theme-node: Add new getter st_theme_node_get_letter_spac
  a305b69... st-private: Add support for letter-spacing in ClutterText b
  593819c... st-entry: Set text-related CSS properties on the internal C

Commits added to the branch:

  cdbc99e... popupMenu: Fix wrong call to clutter_actor_add_child() (*)
  f1b1501... Update Croatian translation (*)
  d6d09fd... ui: Theme lookup should respect XDG_DATA_DIRS (*)
  695d619... st-theme-node: Add new getter st_theme_node_get_letter_spac
  376d696... st-private: Add support for letter-spacing in ClutterText b
  be76b19... st-entry: Set text-related CSS properties on the internal C

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