Make Song Attacks on by default.

No, metrics wasn't enough.

Now to get #ATTACKS working on Split Timing.

src/PlayerOptions.cpp

@@ -37,7 +37,7 @@ void PlayerOptions::Init()
 	m_fBlind = 0;			m_SpeedfBlind = 1.0f;
 	m_fCover = 0;			m_SpeedfCover = 1.0f;
 	m_fRandAttack = 0;		m_SpeedfRandAttack = 1.0f;
-	m_fSongAttack = 0;		m_SpeedfSongAttack = 1.0f;
+	m_fSongAttack = 1;		m_SpeedfSongAttack = 1.0f;
 	m_fPlayerAutoPlay = 0;		m_SpeedfPlayerAutoPlay = 1.0f;
 	m_bSetTiltOrSkew = false;
 	m_fPerspectiveTilt = 0;		m_SpeedfPerspectiveTilt = 1.0f;