Save rotated image orientation in place

[caadar]

Please add option to save rotated images (overwrite such files).

It's very useful as scanned/photo images preprocessing (open working dir, jump over files and fix orientation of some of them), befor converting to pdf.

Currently I use Mirage for the task. The Gimp or Scantailor is too big and slow.

[Andrey Ugolnik]

May be better way to store rotation information along with image file inside current directory?

[caadar]

As I guess, another tools (e.g. `convert') will not use rotation information outside files processed (am I wrong?), so this way seems useless for me.