* packages/vlf/vlf.el: Version 0.6
(vlf-mode): Setup revert and file write.
(vlf-format-buffer-name): Change format to indicate the chunk numbers.
(vlf-insert-file): Remove unused arg `file'.
(vlf-beginning-of-file, vlf-end-of-file, vlf-jump-to-chunk): New commands.
(vlf-mode-map): Use them. Add a `j' binding.
(vlf-revert): New function.
(vlf-next-batch, vlf-prev-batch, vlf-move-to-batch, vlf-move-to-chunk):
Set modtime. Better preserve point.
(vlf-file-shift-back, vlf-shift-batch, vlf-file-shift-forward)
(vlf-shift-batches): New functions.
(vlf-write): Use them when size of saved chunks has changed.
Pay attention to modtimes.