[gnome-shell] (27 commits) ...keyboard: Do not create widgetry for all keyboard groups at once

[Carlos Garnacho <carlosg src gnome org>]

Summary of changes:

  7544bba... keyboard: Restore intended OSK visibility behavior (*)
  6795fb0... data: Add README and supporting script to update keyboard l (*)
  52a779e... data: Add keyboard layout JSON files (*)
  a1ce0da... main: Load OSK layouts resource (*)
  33c3ed6... keyboard: Drop message tray source, and tray focus handling (*)
  7fd8fa3... keyboard: Rework OSK (*)
  40db4a6... main: Stop acquiring caribou name (*)
  3dd3c1a... st: Make st_button_fake_release() work with touch press (*)
  774930f... keyboard: Ensure to resize keys after layer change (*)
  5914f22... misc: Add InputMethod class (*)
  73c7441... keyboard: Use InputMethod underneath (*)
  d93037c... keyboard: Lookup minimum number of grid slots for each keym (*)
  5b1e705... keyboard: Add Suggestions object/actor (*)
  e0910c0... keyboard: Add visible property (*)
  a2303c5... ibusCandidatePopup: Feed OSK suggestions from ibus panel ca (*)
  d86b62d... st: Make StEntry rely entirely on ClutterInputMethod/Focus (*)
  83accce... st: Remove StIMText (*)
  d1bebba... shell: Remove intricate key event handling code (*)
  8c3f5b6... shell: Remove gdk_screen property/getter (*)
  70bc949... keyboard: add a special KeyContainer actor to contain keybo (*)
  e4ee944... viewSelector: Send first printable keystroke to the search  (*)
  5cec4ae... keyboard: Move extended keys pop up/down into the Key objec (*)
  e0852e5... keyboard: Remove duplicate code (*)
  083d11a... misc: Make IBus a mandatory dependency (*)
  d7f8a39... keyboard: slide focused window on OSK visibility (*)
  82cecf2... keyboard: Add languages selection popup (*)
  8fdf47e... keyboard: Do not create widgetry for all keyboard groups at (*)

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