Removed the 'wu' and 'wd' constants for love.mousepressed, added new love.wheelmoved(x, y) event callback.

+x is mousewheel-right, +y is mousewheel-up.

--HG--
branch : minor

src/modules/mouse/Mouse.cpp

@@ -40,8 +40,6 @@ StringMap<Mouse::Button, Mouse::BUTTON_MAX_ENUM>::Entry Mouse::buttonEntries[] =
 	{"l", Mouse::BUTTON_LEFT},
 	{"m", Mouse::BUTTON_MIDDLE},
 	{"r", Mouse::BUTTON_RIGHT},
-	{"wu", Mouse::BUTTON_WHEELUP},
-	{"wd", Mouse::BUTTON_WHEELDOWN},
 	{"x1", Mouse::BUTTON_X1},
 	{"x2", Mouse::BUTTON_X2},
 };

src/modules/mouse/Mouse.h

@@ -44,8 +44,6 @@ public:
 		BUTTON_RIGHT,
 		BUTTON_X1,
 		BUTTON_X2,
-		BUTTON_WHEELUP,
-		BUTTON_WHEELDOWN,
 		BUTTON_MAX_ENUM
 	};