Global menu in Ubuntu

[Serezha]

Hi, everybody! it is quite good to move the main menu on the top Ubuntu panel (Global menu). There will be a bigger working space:


And add XnViewMP in Default Application:

[Kirsty_Lucas]

It would be a nice feature. The main developer said before that XnView is based on Qt library. Most Qt applications do support global menu, so I hope it will not require significant code refactoring.