Use StepAttacks instead.

This deprecates the GetSongAttacks lua function.

Next up: make it so that no text is displayed if
Step Attacks are on, but display "No Attacks" if
attacks are turned off.

src/ScreenGameplay.cpp

@@ -821,7 +821,7 @@ void ScreenGameplay::InitSongQueues()
 			Steps *pSteps = GAMESTATE->m_pCurSteps[ pi->GetStepsAndTrailIndex() ];
 			pi->m_vpStepsQueue.push_back( pSteps );
 
-			if(	pi->GetPlayerState()->m_PlayerOptions.GetCurrent().m_fSongAttack != 0 &&
+			if(	pi->GetPlayerState()->m_PlayerOptions.GetCurrent().m_fStepAttack != 0 &&
 				pSteps->m_Attacks.size() > 0 )
 			{
 				pi->m_asModifiersQueue.push_back( pSteps->m_Attacks );