Minor debug improvements + misc

- Spend less time starting up when not compiled with AQUARIA_FULL/DEMO
- removed entity_setTouchDamage and bone_setTouchDamage, the used variable was never read
- repositioned debug overlay texts, that they are not in the way on wide resolutions
- show used Lua memory in debug text
- very slow slowmo on Shift+F devkey
- fixed RenderObject::isfhr()/isfvr() to be really recursive
  (they were never used until the animation editor fixes - this rotates
   bones on one or more h.flipped parents in the same direction as
   never h.flipped ones)
- removed some unused stuff

BBGE/MathFunctions.h

@@ -58,41 +58,5 @@ namespace MathFunctions
 		return angle;
 	}
 
-	UNUSED static void calculateAngleBetweenVectorsInRadians(Vector vector1, Vector vector2, float &solutionAngle)
-	{
-		Vector dist = vector1 - vector2;		
-		
-		solutionAngle = atan2f(dist.y, fabsf(dist.x));
-		
-		if (dist.x < 0)
-			solutionAngle = PI - solutionAngle;
-		/*
-		solutionAngle = -solutionAngle;
-		solutionAngle += PI/2;
-		*/
-		
-		/*
-		if (dist.x<0)
-			solutionAngle = PI - solutionAngle;
-		*/
-	
-	
-		/*
-		vector1.normalize2D();
-		vector2.normalize2D();
-
-		solutionAngle = cosf((vector1.x*vector2.x + vector2.y*vector2.y));
-		*/
-		
-
-		 //solutionAngle = acosf(vector1.dot(vector2) / (sqrt(vector1.dot(vector1) * vector2.dot(vector2))));
-		//solutionAngle = acosf(vector1.dot(vector2) / (vector1.getLength2D() * vector2.getLength2D()));
-		/*
-		solutionAngle  = (solutionAngle /PI)*180;
-		if (dist.x < 0)
-			solutionAngle = 180-solutionAngle;
-		*/
-	}
-
 };