[libwnck] (5 commits) ...xutils: use single size parameter also in read_rgb_icon

[Marco Trevisan <marcotrevi src gnome org>]

Summary of changes:

  c1460f7... xutils: replace width and height with size in read_icons (*)
  daad23c... xutils: replace width and height with size in get_fallback_ (*)
  402cbd0... xutils: use ideal_size also in try_pixmap_and_mask (*)
  0aa30fe... xutils: don't check if ideal size is 0 or less (*)
  849d465... xutils: use single size parameter also in read_rgb_icon (*)

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