* components/tree/Makefile.am: Add VFS_CFLAGS * components/tree/main.c (main): Initialize more libraries. * components/tree/nautilus-tree-view.h, components/tree/nautilus-tree-view.c: Many changes. The upshot is that basic tree loading now works, but many details remain to be fleshed out (individual bugs were filed on these). * libnautilus-extensions/nautilus-directory-async.c: (dequeue_pending_idle_callback), (directory_load_done): Try to emit done signal exactly once when a monitor load is complete. But I think this might be questionable, see below. * libnautilus-extensions/nautilus-directory-private.h, libnautilus-extensions/nautilus-directory.h, libnautilus-extensions/nautilus-directory.c: Add the "done_loading" signal for when a load initiated by monitoring is done. I just realized this does the wrong thing when more than one thing is monitoring at the same time (both get the signal), so maybe it should be changed to a callback function passed to nautilus_file_monitor_add, but that would be harder to implement. (nautilus_directory_emit_done_loading): Function so the async code can emit it.