[gtk] (9 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' 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:

  2f2591f... filechooserwidget: Plug a memory leak
  a453f1f... shortcutscontroller: Make add_shortcut transfer-full

Commits added to the branch:

  8d8990c... Revert "Adwaita: make insensitive slightly less sensitive" (*)
  910dd7a... HC: derive from Adwaita (*)
  06fe4f0... Adwaita: make insensitive slightly less sensitive (*)
  0d710b0... Merge branch 'wip/jimmac/HC-redesign' into 'master' (*)
  8ab2e31... widget-factory: Add theme switch (*)
  5fdb897... Merge branch 'widget-factory-theme' into 'master' (*)
  f797582... filechooserwidget: Plug a memory leak
  ecb8dda... shortcutscontroller: Make add_shortcut transfer-full
  7323e5e... calendar: Only highlight one day a today

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