Merge pull request #75 from JHooverman/master

Updated German translation, minor cosmetics
Add shadow to image name display in full screen
Merge branch 'master' of github.com:oferkv/phototonic
Enhance image name label in full screen
Slide show fixes
Add Docks and toolbars visibility sub menu
Disable accidental file extension renaming
Better brightness and contrast processing
Resize image part 1
Resize image part 2
Optimizations to compact and squarish thumbnails
Add shortcut keys for external applications
Updated German translation