dosbox: add 0.74 bottle.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
abuse: add 0.8 bottle.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>
Revert "dosbox: add 0.74 bottle."

This reverts commit 36f649de8e716f5a5c62a236948ab9c89ddc3029.

Segfaults when loading games; see #171.
mame & rom-tools 0.156

* Switch to SDL2
mame: update 0.156 bottle.
rom-tools: add 0.156 bottle.