Change back PushEvent() to return int instead of bool
Change back PushEvent() to return int instead of bool

Signed-off-by: Jacky Boen <d2266ffb9ea7feef4bb8def6871fc3b7343ab3ab@gmail.com>

phicode/go-sdl2,rakyll/go-sdl2,krux02/go-sdl2,phicode/go-sdl2,gcatlin/go-sdl2,veandco/go-sdl2,hybridgroup/go-sdl2,rakyll/go-sdl2,krux02/go-sdl2,krux02/go-sdl2,Abextm/go-sdl2,Abextm/go-sdl2,veandco/go-sdl2,rakyll/go-sdl2,gcatlin/go-sdl2,Abextm/go-sdl2,phicode/go-sdl2,jangler/go-sdl2,rakyll/go-sdl2,jangler/go-sdl2,gcatlin/go-sdl2,jangler/go-sdl2