Incorporate a new background and selection bar courtesy of hi-ban. The background is a recreation of a SNES game box.

menu.cpp: Load and display the background. Raise the menu text by 36 pixels. Raise the saved state and ROM selection menus to fit. Remove the "selection bar" behind the ROM path and change its color not to be white.
menu.cpp: Right-align the setting values in the main menu to fit inside the grey rectangle.
Merge branch 'master' of https://github.com/Nebuleon/PocketSNES

Conflicts:
	menu/menu.cpp