UI fixes and orientation changes control

[MenosGrante]

So, I have fixed few problems with UI, that I have created with previous pull request. (Issue #20)

Resolved problem with log reseting after orientation change (Issue #19)

Added permissions handler, which is needed if people want to select payload files using custom file managers (Issue #13).

And I updated Russian and Ukrainian localization. I want to suggest not to make a new version with incomplete localization.