[gtk+/quartz-integration] (9 commits) ...Merge branch 'master' into quartz-integration

[John Ralls <jralls src gnome org>]

Summary of changes:

  c3ac782... Updated Luganda translation (*)
  3e9664c... paned: Remove needless check (*)
  6e3b4af... paned: Move showing of the handle from realize() to map() (*)
  7e2eed8... widget: Update underallocation warning (*)
  2eac1ac... docs: Fix liststore docs (*)
  5b1ca9d... widget: Allow underallocation for scrollables (*)
  1c46e04... arrow: Make minimum size 5px, as opposed to the 15 it was b (*)
  7962a4b... window: Invert check that was wrong (*)
  f6cf252... Merge branch 'master' into quartz-integration

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