Updates for Russian and Polish translations and minor fixes
Add license file
Rotate thumbnails by Exif orientation
Add tabs to settings dialog
Cleanup toolbar icon size
Confirmation when moving folders
Allow customization of toolbar icons size
Update for Czech translation
Proposal to French translation for phototonic and for desktop file

- by David GEIGER <david.david@mageialinux-online.org>
- by Adrien DAUGABEL <adrien.d@mageialinux-online.org>