Implemented getVolumeLocal
Implemented getVolumeLocal

Fixes #148.

ajrulez/FullScreenMario-1,shuidong/FullScreenMario,ajrulez/FullScreenMario-1,sushilkumaraitian/FullScreenMario,ogregoire/FullScreenMario,chensj1901/FullScreenMario,janson123/FullScreenMario,andrewerb/FullScreenMario,daivee/FullScreenMario,eross/FullScreenMario,daivee/FullScreenMario,ogregoire/FullScreenMario,chensj1901/FullScreenMario,sushilkumaraitian/FullScreenMario,shuidong/FullScreenMario,vaikan/FullScreenMario-JSON,chensj1901/FullScreenMario,shuidong/FullScreenMario,eross/FullScreenMario,rmallols/FullScreenMario,rmallols/FullScreenMario,bx5974/FullScreenMario,ajrulez/FullScreenMario-1,andrewerb/FullScreenMario,vaikan/FullScreenMario-JSON,ogregoire/FullScreenMario,andrewerb/FullScreenMario,bx5974/FullScreenMario,janson123/FullScreenMario,daivee/FullScreenMario,rmallols/FullScreenMario,eross/FullScreenMario,vaikan/FullScreenMario-JSON,sushilkumaraitian/FullScreenMario,janson123/FullScreenMario,bx5974/FullScreenMario