Topic: Client r 388 - r390 changes

Removed code that caused client to crash on resize or switching from/to fullscreen
Improved exit error message, that will restart game when pressing retry and closing the game when pressing cancel
Added ability to self-elevate after failed permission check

Amethyst        T0    Pyr     30
Cisco                T4    Sco    90
Delphi              T1    Eng    21
Neuropath      T0    Tel     10