#69 pluginRenderCameraOSG() - Joystick

[Patrick Castonguay]

When using a joystick (Wingman Extreme in my case) is was getting an error every time I was exiting the MPV. It was a simple fix in the destructor [~PluginRenderCameraOSG()] by replacing - if( SDL_JoystickOpened(0) ) - with - if ( SDL_NumJoysticks() ) -. This may be worth including in the next release