* configure.in.in: Check for statvfs() and statfs(), and required
	  header files.
	* thunar-vfs/thunar-vfs-info.{c,h}, thunar-vfs/thunar-vfs-volume.{c,h},
	  thunar-vfs/thunar-vfs-volume-bsd.c, thunar-vfs/thunar-vfs.symbols:
	  Move the get_free_space() method from ThunarVfsVolume to ThunarVfsInfo
	  so we can use it even if no volume manager implementation is avail-
	  able for the target system. Bug #1420.
	* thunar/thunar-file.h: Add get_free_space() method to ThunarFile, so
	  we can easily determine the amount free space for a given volume
	  based on a file located on that volume. Bug #1421.
	* thunar/thunar-list-model.c(thunar_list_model_get_statusbar_text): Use
	  new method thunar_file_get_free_space().
	* thunar/thunar-properties-dialog.c: Display the amount of free space
	  on a certain volume in the properties dialog for folders.




(Old svn revision: 19716)