Quit program when all windows close (#886)
Quit program when all windows close (#886)


drew-gross/black-screen,shockone/black-screen,vshatskyi/black-screen,drew-gross/black-screen,black-screen/black-screen,drew-gross/black-screen,vshatskyi/black-screen,railsware/upterm,black-screen/black-screen,railsware/upterm,vshatskyi/black-screen,vshatskyi/black-screen,drew-gross/black-screen,shockone/black-screen,black-screen/black-screen