Guard against ghost gamepadAxisMove...
Guard against ghost gamepadAxisMove...

...update if device is null: application would crash if device has been removed (tested on Mac OS X).
Gama11/openfl,NenadBojkovski/openfl,openfl/openfl,Gama11/openfl,openfl/openfl,openfl/openfl,Gama11/openfl,Gama11/openfl,NenadBojkovski/openfl