digikam from trunk : improvement of camera interface : Restoring an old feature from digiKam 0.6.2 to upload pictures to camera.

In fact the interface to upload into gphoto2 camera have been never removed but the interface with the new digiKam folder view have never written by renchi.

All camera type are supported : Gphoto2, PTP, UMS, etc. This implementation have been tested with my Olympus C3000Z and my Minolta Dynax 5D.

By this commit, there is 2 ways to upload pictures in your camera :

- Drag digikam from trunk : improvement of camera interface : Restoring an old feature from digiKam 0.6.2 to upload pictures to camera.

In fact the interface to upload into gphoto2 camera have been never removed but the interface with the new digiKam folder view have never written by renchi.

All camera type are supported : Gphoto2, PTP, UMS, etc. This implementation have been tested with my Olympus C3000Z and my Minolta Dynax 5D.

By this commit, there is 2 ways to upload pictures in your camera :

- Drag & drop between digiKam main interface (or quesror if you want), and camera interface.
- Copy and Paste like between digiKam album.

Todo : add a new 'Upload' button on the bottom of Camera Interface. I need a feedback from user before to do it... This one is really mandatory ?

Note : with Gphoto2 camera, check if the camera dirver support upload using the new camera info dialog available by Camera Interface Help menu.