ChangeLog, ext2fs.h, ismounted.c:

ChangeLog, ext2fs.h, ismounted.c:
  ismounted.c: add ext2fs_check_mount_point() function, which will
  	optionally return the mount point of a device if mounted
ChangeLog, closefs.c, ext2fs.h:
  ext2fs.h, closefs.c (ext2fs_flush): Add new flag,
  	EXT2_FLAG_SUPER_ONLY, which the close routines to only update the
  	superblock, and not the group descriptors.