[gimp] (8 commits) Non-fast-forward update to branch alxsa-load-icns

[Alx Sa <sawyeralex src gnome org>]

The branch 'alxsa-load-icns' 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:

  a22cec2... plug-ins: Add support for loading .icns files

Commits added to the branch:

  7708c3f... Issue #8744: refactor overdependence on gimpui.h (*)
  177e3b7... Update Chinese (China) translation (*)
  4b4dd5e... app: remove unused GIMP_HELP_TOOLS_DIALOG help id (*)
  b317ece... pdb: Use floating point offset in stroke_translate (*)
  6cb58fb... app: remove duplicate GIMP_HELP_TOOL_CURVES define (*)
  6c0c2f1... themes: toggle buttons were not styled at all when toggled. (*)
  62963aa... devel-docs: delete various devel docs which are now in deve (*)
  00232e1... plug-ins: Add support for loading .icns files

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