[gtk+/quartz-integration] (29 commits) ...Merge branch 'master' into quartz-integration

[John Ralls <jralls src gnome org>]

Summary of changes:

  f6e11fe... Revert "arrow: Make minimum size 5px" (*)
  4e75148... configure.ac: Bump glib minimum required version to 2.29.2 (*)
  d543a9c... configure.ac: Indeed the minimum required version is 2.29.4 (*)
  6889d5b... GtkWindow: set mnemonics visible on focus in if modifier is (*)
  73bf174... Some additional auto-mnemonic fixes (*)
  c8c1075... gtk-demo: Don't leave a dangling pointer to a destroyed wid (*)
  deb271d... Add gtk_container_child_notify (*)
  e244e50... Silently allow child properties on grandchildren (*)
  e8413cc... testassistant: some more tests (*)
  c83e76f... GtkAssistant: an new style for assistants (*)
  e805320... gtk3-demo: assistant demo simplications (*)
  73d9ca6... cellrendererprogress: don't force drawing inside the border (*)
  579afaa... progressbar: fetch the padding without the trough style cla (*)
  297e739... testassistant: don't use deprecated functions (*)
  d399a4a... Added GdkRGBA properties to GtkTextTag. (*)
  604292a... Fixed textview rendering regression. (*)
  d3c77f0... Handled error_color with GdkRGBA in gtktextdisplay.c. (*)
  2b2d7aa... Fixed GtkTextTag to sync the GdkColors with the new GdkRGBA (*)
  cefb950... Added internal GdkRGBA support for GtkTextTag::paragraph-ba (*)
  e217c45... Added Since 3.2 annotations for new GdkRGBA properties. (*)
  9fd1feb... Adding more traditional checkered background to testtextvie (*)
  5cb3f5f... Remove outdated comments (*)
  1d647df... Add a lock button widget (*)
  569f480... Update the NEWS for 3.1.4 (*)
  e31c73d... More updates (*)
  a805e70... Add a new forgotten symbol (*)
  eba4ca3... Drop missing tests (*)
  111b7fd... Distcheck fixes (*)
  d970483... Merge branch 'master' into quartz-integration

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