* libnautilus/{gdk-extensions.c,gnome-icon-container.c}: Fix warnings
* libnautilus/gnome-icon-container.c: Try (unsuccessfully) to get
  proper icon reflow by calling icon_grid_resize() instead of
  icon_grid_set_visible_width(), in size_allocate().
* src/*.*: Add ntl-app.[ch].
* src/file-manager/desktop-*.c: Fix warnings.
* src/file-manager/fm-directory-view.c: Remove incorrect warning,
  allow turning off use of icon_layout altogether.