[gtk] (14 commits) ...Merge branch 'file-chooser-api-cleanup-2' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  06d67d2... cups: Plug a memory leak (*)
  8c4df51... tests: Plug some more memory leaks (*)
  bc8bc68... Add a suppression file for asan (*)
  0f8bc67... docs: Add gtk_file_chooser_get_shortcut_folders (*)
  73dcda4... tests: Stop using file chooser apis that are going away (*)
  2321e9d... filechooser: Drop gtk_file_chooser_[un]_select_all (*)
  dcee15c... filechooser: Drop gtk_file_chooser_[un]select_file (*)
  f3744c9... Cosmetics (*)
  89bf8af... filechooser: Make get_files return a list model (*)
  99a0b35... filechooser: Drop the ::file-activated signal (*)
  911ae64... filechoosernative: Update docs (*)
  e31bacf... filechooser: Drop the ::current-folder-changed signal (*)
  2746a2d... filechooser: Drop the ::selection-changed signal (*)
  be12131... Merge branch 'file-chooser-api-cleanup-2' into 'master'

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