[PlayerOptions] Add GetMMod() Lua binding.

Docs/Changelog_sm5.txt

@@ -10,7 +10,7 @@ StepMania 5.0 Preview 3 | 20110820
 
 2011/08/20
 ----------
-* [CustomSpeedMods] Updated to v2.2; implements a m-Mod fix. [hanubeki]
+* [PlayerOptions] Add GetMMod() Lua binding. [AJ]
 
 2011/08/19
 ----------

src/PlayerOptions.cpp

@@ -913,6 +913,7 @@ public:
 			lua_pushnil(L);
 		return 1;
 	}
+	static int GetMMod( T *p, lua_State *L ) { lua_pushnumber(L, p->m_fMaxScrollBPM); return 1; }
 
 	// Accel
 	DEFINE_METHOD( GetBoost, m_fAccels[PlayerOptions::ACCEL_BOOST] )
@@ -1042,6 +1043,7 @@ public:
 		ADD_METHOD( GetNoAttacks );
 		ADD_METHOD( GetCMod );
 		ADD_METHOD( GetXMod );
+		ADD_METHOD( GetMMod );
 
 		// Accel
 		ADD_METHOD( GetBoost );