Add zoom spin box for precise zoom setting.
fix header ifdef
Merge zoom spinbox feature on master. Fix bug in the zoom spinbox feature.
Initial definition of a module to measure PSNR and to display results on a dock
Merge branch 'master' of https://github.com/pixlra/playuver
Merge branch 'master' into devel
Add SYNCHRONISED_ZOON definition
Merge branch 'master' into devel